Answers
Answer:
Soil in this text is a natural body comprised of solids
(minerals and organic matter), liquid, and gases that occurs
on the land surface, occupies space, and is characterized by
one or both of the following: horizons, or layers, that are
distinguishable from the initial material as a result of additions,
losses, transfers, and transformations of energy and matter or
the ability to support rooted plants in a natural environment
(Soil Survey Staff, 1999). This definition is expanded from the
previous version of Soil Taxonomy (Soil Survey Staff, 1975) to
include soils in areas of Antarctica where pedogenesis occurs
but where the climate is too harsh to support the higher plant
forms.
The upper limit of soil is the boundary between soil and
either air, shallow water, live plants, or plant materials that
have not begun to decompose. Areas are not considered to have
soil if the surface is permanently covered by water too deep
(typically more than about 2.5 m) for the growth of rooted
plants. The horizontal boundaries of soil are areas where the soil
grades to deep water, barren areas, rock, or ice. In some places
the separation between soil and non soil is so gradual that clear
distinctions cannot be made.
The lower boundary that separates soil from the non soil
underneath is most difficult to define. Soil consists of the
horizons near the earth’s surface that, in contrast to the
underlying parent material, have been altered by the interactions
of climate, relief, and living organisms over time. Commonly,
soil grades at its lower boundary to hard rock or to earthy
materials virtually devoid of animals, roots, or other marks
of biological activity. The lowest depth of biological activity,
however, is difficult to discern and is often gradual. For
the practicality of soil survey, the lower boundary of soil is
arbitrarily set at 200 cm. In soils where either biological activity
or current pedogenic processes extend to depths greater than
200 cm, the lower limit of the soil for classification purposes
is still 200 cm. In some instances the more weakly cemented
bedrocks (paralithic materials, defined later) and uncemented
bedrocks (some densic materials, defined later) have been
described below the lower boundary of soil and used to
differentiate soil series (series control section, defined in chapter
17). This is permissible even though the paralithic materials
below a paralithic contact are not considered soil in the true
sense. In areas where soil has thin, pedagogically cemented
horizons that are impermeable to roots, the soil extends as
deep as the deepest cemented horizon, but not below 200 cm.
For certain management goals, layers deeper than the lower
boundary of the soil that is classified (200 cm) must also be
described if they affect the content and movement of water and
air or other interpretative concerns.
In the humid tropics, earthy materials may extend to a depth
of many meters with no obvious changes below the upper 1 or
2 m, except for an occasional stone line. In many wet soils,
gleyed soil material may begin a few centimeters below the
surface and, in some areas, continue down for several meters
apparently unchanged with increasing depth. The latter
condition can arise through the gradual filling of a wet basin
in which the A horizon is gradually added to the surface and
becomes gleyed beneath. Finally, the A horizon rests on a thick
mass of gleyed material that may be relatively uniform. In both
of these situations, there is no alternative but to set the lower
limit of soil at the arbitrary limit of 200 cm.
Soil, as defined in this text, does not need to have discernible
genetic horizons, although the presence or absence of genetic
horizons and their nature are of extreme importance in soil
classification. Plants can be grown under glass in pots filled
with earthy materials, such as peat or sand, or even in water.
Under proper conditions all these media are productive for
plants, but they are non soil here in the sense that they cannot
be classified in the same system that is used for the soils of a
survey area, county, or even nation. Plants even grow on trees
or in cracks of exposed bedrock (i.e., rock outcrop), but trees
and rock outcrop are regarded as non soil.
Soil has many temporal properties that fluctuate hourly,
daily, and seasonally. It may be alternately cold, warm, dry,
or moist. Biological activity is slowed or stopped if the soil
becomes too cold or too dry. The soil receives additions of
fresh, undecomposed organic matter when leaves fall or grasses
die. Soil is not static. The pH, soluble salts, amount of organic
matter and carbon-nitrogen ratio, numbers of microorganisms,
soil fauna, temperature, and moisture status all change with
the seasons as well as with more extended periods of time.
Soil must be viewed from both the short-term and long-term
perspective.
Related Questions
Which of these occurs in the first trimester of human pregnancy?
A. The fetus accumulates fat under its skin.
B. The fetus's lungs become fully developed.
C. The fetus is able to move its limbs.
D. The fetus becomes medically viable.
Answers
Answer:
i think its probably A
Explanation:
the first trimester is when the fetus enters a stage of rapid development. forming most organs, facial features, skeletal tissue, and limbs. So its either A or B. But i dont think the lungs are fully developed yet so i would choose A. hope this helped
Which of the following is an example of a compound?
OH₂
O CO2
ON2
002
Answers
Conservation of Mass Activity Worksheet
Instructions: Observe and analyze the interactions between the substances pictured in the slide show. Compare the properties of substances before and after each interaction. You will submit your completed worksheet for grading.
Data Table
On the table below, record your observations before and after the interactions and explain how mass was conserved. Describe the changes in properties that prove a chemical reaction occurred. The first row is an example.
Observations Before Interaction Observations After Interaction How was mass conserved? Proof of a Chemical Reaction
Example: Sugar + Heat The sugar is in tiny white particles in a pile. Heat is not seen but is implied by the heat source. The pile of sugar in the pot has a mass of 100 grams. There is a solid, light brown mass at the bottom of the pot. It has a mass of 100 grams. The mass of the sugar is the same in melted form as it is in solid crystal form. There was not a chemical reaction. Sugar did not change composition. It only melted. Melting point is a physical property, and this is a physical change.
Steel Wool + Oxygen (Fire)
Egg + Heat
Water + Heat
Zinc + Hydrogen Chloride
Sodium Hydroxide + Copper Sulfate
HELPPPP PLEASEEEEEE
Answers
After Interaction How was mass conserved it is discussed below:
Steel Wool + Oxygen (Fire): chemical change
Egg + Heat: chemical change
Water + Heat: physical change.
Zinc + Hydrogen Chloride: chemical change
Sodium Hydroxide + Copper Sulfate: physical change
What is conservation of mass?According to the rule of conservation of mass, no atoms are lost or created during a chemical process. Instead, the atoms combine in various ways to generate products. This is why the number of atoms in each element in a balanced symbol equation is the same on both sides of the equation.
Steel Wool + Oxygen (Fire):The steel wool is a grayish color and has a rough surface. Oxygen is transparent It looks like a powder, and like if it was rusted steel wool but then broken apart and turned into a powder Well Iron oxide is 7 grams and steel wool combined is 7 grams so that the mass was conserved Yes, this is a chemical change because the steel wool rusted and rust is a chemical change, so iron oxide is cause because if a physical change.
Egg + Heat:The egg has a yellow yolk in the middle while there is some type of liquid at the border of the yolk, but it is clear, the heat is hot but transparent The egg turned into a delicious food called an omelet what was yolk staid as a liquid but got a tad harder, but the transparent border around it turned white It was conserved because the eggshell was 4 grams and the fried egg is 41 grams It is a chemical change because it results in the formation of new particles, and the chemical bonds break up and new ones are formed.
Water (H₂O) + Heat:The water is a clear liquid, while the heat is very hot but transparent The water turned into a type of oxygen -Water Vapor- If 5 g of water becomes a gas it becomes 5 g of water vapor. The mass of the liquid water is simply transferred into the mass of the newly formed water vapor. There was no chemical reaction because the water vapor can be turned back to water also it just changed from a liquid to a gas and did not change its composition. So, it is a physical change.
Zinc (Zn) + Hydrogen Chloride (HCl):Zinc: a white/silver metallic solid. Hydrogen chloride (dilute hydroelectric acid) a transparent, colorless liquid with a very low pH (acidic). Zinc "dissolved" in hydrogen chloride, while emitting a colorless gas. The liquid remains a colorless liquid, possibly still having a low pH from the unused acid. The colorless gas collected in a test tube gives a popping sound when ignited with a burning wooden splint, so it is not air embedded in the zinc, nor dissolved in hydroelectric acid. Well although the zinc chloride is 12 grams and not 15 the gas that was released was 3 grams and as we all know 3 + 12 is 15 so that the mass was conserved The production of a new substance (most probably hydrogen) from the reaction of the two reactants. When a few drops of the liquid product are evaporated on a watch glass, a white residue is left. When a few drops of the liquid hydroelectric acid are evaporated on a watch glass, there is no residue. This proves that a new product (hydrogen gas), (white powder, zinc chloride) is produced instead of zinc being physically dissolved in hydroelectric acid. So, it is a chemical change.
Sodium Hydroxide + Copper Sulfate-Sodium hydroxide is a turbid solution and copper sulfate is in form of bright blue crystals. When their solutions are mixed with each other, a pale blue precipitate of basic copper hydroxide & a solution of neutral salt sodium sulfate will be formed. The sodium hydroxide and the copper sulfate combined make a total of 67 grams and the product is split because the sodium sulfate is 47 grams and the copper hydroxide is 20 grams but all together it is still 67 grams so you could say that the mass was conserved. The proof of the reaction is the appearance of pale blue precipitates of basic copper hydroxide & a solution of neutral salt sodium sulfate. So, it is physical change.
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In a population the homozygous dominant individual make up 70% of the population while heterozygous ones made up 21% and recessive made up 9%. What are the frequencies of the A and a alleles?
Answers
There are two alleles in a population that influence a specific attribute. Using the letters "A" for the dominant allele and "a" for the recessive allele. A allele frequency is 0.7, whereas frequency of allele is 0.09.
The frequency of the A allele is 0.7, or 70%, since homozygous dominant (AA) genotypes account for 70% of the population. Similarly, since homozygous recessive (aa) alleles make up 9% of the population, we can infer that the frequency of the recessive allele, a, is 0.09, or 9%.
The formula 2pq = frequency of heterozygotes, where p is the frequency of the A allele and q is the frequency of the an allele, can be used to determine the frequency of the heterozygous genotype (Aa).
We know that the frequency of heterozygotes is 0.21, or 21%.
Plugging in the known values:
2 * 0.7 * q = 0.21
Solving for q:
q = 0.15
So, the frequency of the A allele is 0.7, and the frequency of the a allele is 0.09.
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Which of the following best explains why the Galápagos islands are still used for evolution research today?
A) The diversity in environments on each island provides many opportunities to study how related organisms
have adapted over time.
B) The species diversity on the islands is one of the largest in the world, allowing for many examples of
evolution
C) The islands are easy to access from the mainland, and the climate is particularly well suited for research all
year long
D) Most species found on the islands are only found in this geographic area, which allows researchers to easily
isolate their studies.
Answers
The following best explains why the Galápagos islands are still used for evolution research today most species found on the islands are only found in this geographic area, which allows researchers to easily isolate their studies.
Galápagos are a extraordinary vicinity to observe evolution, still, because, remarkably, numerous islands and their population are near being withinside the completely herbal state, with very little have an impact on of human activities,” says the evolutionary biologist and Princeton University professor emeritus Peter Grant.
What is unique of Galápagos islands?Six hundred miles off the coast of Ecuador lie the volcanic islands of the Galápagos, well-known for a wealth of particular flora and animals discovered nowhere else withinside the world. The Galápagos Islands have been the supply of Darwin's concept of evolution and stay a valuable residing laboratory for scientists today.
Thus it is well explained.
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Which statement best explains how the cell membrane helps a cell remove waste? A. Carbon dioxide molecules pass out of the cell through the layer of phospholipids
Answers
Create a flow chart to represent
and describe the process of urine
formation in the kidneys
Answers
Start -> Filtration -> Reabsorption -> Secretion -> Concentration -> Urine
Description of the process:
1. Filtration: The process of urine formation begins with the filtration of blood in the glomerulus, a network of small blood vessels called capillaries. The glomerulus filters blood by forcing fluids and small molecules through the walls of the capillaries and into the Bowman's capsule.
2. Reabsorption: The filtered fluid then moves through the proximal tubule of the nephron, where essential substances such as glucose, amino acids, and salts are reabsorbed back into the bloodstream.
3. Secretion: In the next stage, the filtrate passes through the loop of Henle, where more water and electrolytes are reabsorbed. This is followed by the distal tubule where hydrogen ions, potassium ions, and some drugs are secreted into the filtrate.
4. Concentration: In the final stage, the filtrate reaches the collecting duct, where water is reabsorbed, and the urine is concentrated. The concentration of urine is controlled by the hormone ADH (antidiuretic hormone), which regulates the amount of water that is reabsorbed into the bloodstream.
5. Urine: Once the urine is formed, it is transported from the kidneys to the bladder, where it is stored until it is expelled from the body during urination.
End of the process.
Sienna decides to study movement in plants. Identify the correct sequence of the scientific steps, and place the steps in order.
She developed a
hypothesis that
plants move toward light.
Over six weeks, both
plants grew toward their
available light source.
She put one plant near
the window and another
in a dark room with a
small opening that let
light come through.
Every few days she
checked the plants
and recorded the
direction of their
growth.
Answers
1. Develop a hypothesis: Sienna hypothesized that plants move toward light. 2. Set up the experiment: Sienna placed one plant near a window and another in a dark room with a small opening that allowed light to come through. 3. Observe and record: Sienna checked the plants every few days and recorded the direction of their growth. 4. Analyze the data: Sienna examined the recorded data to determine the direction of growth for each plant over the six-week period. 5. Draw conclusions: Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not.
1. Sienna developed a hypothesis that plants move toward light. This is the initial step where she formulates her prediction based on prior knowledge or observations.
2. Sienna set up the experiment by placing one plant near a window and another in a dark room with a small opening that allowed light to come through. This step ensures that there are two distinct conditions to compare the plant growth.
3. Every few days, Sienna checked the plants and recorded the direction of their growth. This step involves making regular observations and documenting the changes in plant growth over time.
4. After six weeks, Sienna gathered all the recorded data, which included the direction of growth for each plant. This data would serve as the basis for further analysis.
5. Sienna analyzed the data by examining the recorded observations. She compared the direction of growth for each plant and looked for patterns or differences between the plant near the window and the one in the dark room.
6. Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not. This step involved interpreting the data and determining if the hypothesis was supported or refuted by the evidence gathered from the experiment.
By following this sequence of steps, Sienna was able to study movement in plants and draw conclusions about their response to light.
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HURRY! 10 MINS LEFT! Which characteristic, found in free-range farming but not in industrial farming, makes free-range farms more humane?
very small living area
processed food
use of antibiotics and hormones
access to fresh air and sunlight
Answers
The characteristic found in free-range farming but not in industrial farming that makes free-range farms more humane is the access to fresh air and sunlight.
What is Free-range farming?Free-range farming involves giving animals access to outdoor areas where they can move around freely and have exposure to natural sunlight and fresh air.
Industrial farming, on the other hand, typically involves keeping animals confined to indoor spaces with limited or no access to the outdoors. This lack of access to natural light and fresh air can have negative effects on animal welfare and health.
Therefore, free-range farming is often considered a more humane approach to animal farming as it allows animals to exhibit natural behaviors and live in more natural conditions.
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Animals are heterotrophs. What does this mean? Group of answer choices They are able to move around easily whether through walking, swimming, or flying. They are multicellular and therefore have more than one cell. They cannot make their own food and must consume organic molecules to obtain energy. They are made up of organs and organ systems.
Answers
HELP
The structure of cellulose is shown below. What monomer combines and
forms cellulose?
Answers
That structure is of a carbohydrate.
A carbohydrate consists of CHO(Carbon, Hydrogen, and Oxygen). We can see these noted on the chemical structure in the picture.
Glucose is a monomer of cellulose.
How do limiting factors determine the carrying capacity of an ecosystem?Why is sod valuable? a. loses fertility c. prevents soil erosion b. loses topsoil d. causes soil erosion
Answers
Limiting factors affect the carrying capacity by limiting available resources and regulating population sizes. Sod is valuable because it prevents soil erosion. Option C.
How limiting factors affect the carrying capacity?
The carrying capacity is the capability of the environment to support a growing population. It might be affected by different factors, known as limiting factors.
Limiting factors might depend on population density or be density-independent.
Density-dependent factors → depend on the population size → intra- and interspecific competition or predation.These factors are related to the interaction between populations and species. They might compete for resources (in which case resources become limited, affecting population sizes) or might establish a predator-prey relationship (in which case, predators and prey depend on each other and regulate their population size).
Density-independent factors → do not depend on the population size → Human impact or natural disasters (fires, volcanic eruptions, flooding).
Density-independent factors cause damage to the ecosystems, reducing the available resources such as food, water, or shelter and consequently decreasing the number of individuals. These factors reduce the carrying capacity of the environment.
In both cases, limiting factors regulate population size.
What is erosion?Erosion is the fertile soil loss process that leads to its degradation. It is due to several external agents that damage the ground and drag the exposed material from the superficial layers.
All the erosive agents act together, altering the soil composition, shape, and structure.
Some erosive agents are water, wind, ice, gravity, and animal trampling.
The loss of natural plant cover aggravates the erosive effects since no plants are protecting the soil.
Soil plant cover reduces erosion because the aerial part of the plant protects the surface, while roots protect the ground structure and absorb water.
Several grass species develop large roots to establish themselves on the ground. This characteristic helps to reduce erosion and to keep soil humidity.
In conclusion,
Limiting factors regulate population size.Plant cover avoids erosion. So, the correct option is C. Sod is valuable because it prevents soil erosion.You can learn more about erosion and limiting factors at
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Which type of energy transfer does not need direct contact between two items
A condensation
B convection
C conduction
D radiation
Answers
Answer:
D radiation
Explanation:
it is radiaton because radiation travels through empty spaces
Radiation can travel through empty spaces.
Q.1 Why do you think roots branch out in the soil? You may be able to think of two reasons.
Q.2 Suggest why many leaves are very broad and thin.
Answers
Q.1 There are two main reasons why roots branch out in the soil:
To increase the surface area for absorption: The root system of a plant is responsible for absorbing water and nutrients from the soil. By branching out, the root system can increase its surface area and come into contact with more soil particles, increasing the plant's ability to absorb water and nutrients.
To provide stability and support: A plant's roots also help to anchor it in the soil and provide support. By branching out, the roots can spread and anchor the plant more effectively, especially in loose or unstable soil.
Q.2 Many leaves are broad and thin because this shape maximizes their ability to carry out photosynthesis, the process by which plants convert sunlight into energy. The broad shape of the leaf provides a large surface area for sunlight to be absorbed, while the thinness of the leaf ensures that light can penetrate through to the lower layers of cells, where photosynthesis occurs. The thinness of the leaf also facilitates the exchange of gases, allowing for the uptake of carbon dioxide from the air and the release of oxygen, which is a byproduct of photosynthesis. Additionally, the broad shape of leaves allows for the efficient dissipation of heat, which can build up during photosynthesis and potentially damage the plant's cells. Overall, the broad and thin shape of leaves is well-suited to the plant's need for efficient photosynthesis and gas exchange.
What is an outcome of gene regulation?
• A. Each cell produces only the proteins it needs.
• B. Every cell produces all types of proteins.
• C. Each cell is able to produce only one protein.
D. Each cell contains the genes for only one protein.
Answers
Answer:
• C. Each cell is able to produce only one protein.
Explanation:
if it helped you please mark me a brainliest :))
Several color variants of a wild berry are shown below in which black is the wild-type phenotype. All of the color variants are due to differing alleles for the same gene. Crosses produce the following results:
Based on the results above, which FOUR of the following statements are true?
• The green color is recessive.
• The green color is dominant to the wild-type black color.
• The blue color is recessive to the wild-type black color.
• The blue color is dominant.
• The blue color is recessive to the green color.
• The green color is recessive to the blue color.
• The blue color is recessive.
• The blue color is dominant to the green color.
• The green color is recessive to the wild-type black color.
• The blue color is dominant to the wild-type black color.
• The green color is dominant to the blue color.
• The green color is dominant
Answers
Answer:
the green colour is recessive
_____ energy is tapped from the heat of Earth.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Volcanic
Geothermal
Convection
Terra therma
Answers
Answer:
-- Geothermal energy is tapped from the heat of the Earth.
Using the above diagram, what does the body make in response to a vaccine?
Answers
Answer:
antibodies
Explanation:
Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
Define the condition of Muscular Disorders
Answers
The disorders that affect the human muscular system which causes weakness of skeletal muscles, lack of strength, fatigue and inability to carry out day to day activities, are known as muscular disorders.
Muscular dystrophy, neuromuscular disorders and conditions, etc. all come into the category of muscular disorders.
The symptoms of muscular disorders comprise of pain, weakness and sometimes paralysis. The causes include injury, genetic disorders, inflammation, overuse of muscles, etc.
The different muscular disorders are as follows:
Duchenne muscular dystrophy, cerebral palsy, myasthenia gravis, compartment syndrome, myotonia, polymyositis, tendinitis, fibromyalgia, dermatomyositis and so on.
Treatment differs according to the type of muscular disorder.
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HELP, 100 POINTS!
Identify one source of carbon that can be found in each of these four spheres: atmosphere (air), geosphere (land), biosphere (living organisms) and hydrosphere (water).
The mitochondria has been described as the engine of the cell. Why is this a fitting nickname? How is this organelle involved in the process of cellular respiration?
Describe the process of photosynthesis in plants. Why is this process important to animals and humans?
How are the processes of cellular respiration, photosynthesis and carbon cycle related to each other?
Explain how one of the processes discussed in this module (photosynthesis, cellular respiration or the carbon cycle) apply to both the Law of Conservation of Matter and Law of Conservation of Energy.
Answers
Answer:
1.Mitochondria is considered as the power house of the cell as it helps in producing large amount of energy in the form of ATP (adenosine triphosphate) that is used in driving various cellular activities.
2.Through a process called photosynthesis, plants use energy in sunlight to turn a gas called carbon dioxide and water into sugar. Plants then use this sugar to grow. At the same time, plants produce a gas called oxygen as a waste product, which is lucky for us and other animals because we need oxygen to breathe!
3.Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
4.Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2). How does photosynthesis demonstrate the law of conservation? ... The AMOUNT of carbon-dioxide atoms released by respiration are EXACTLY EQUAL to the atoms of these materials contained in the oxygen and carbon converted.The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle. ... Carbon is used for energy, and some is stored for growth.
How does diffusion occur in cells? Please submit your conclusion paragraph.
Answers
Diffusion is an essential process for the functioning of cells, as it allows for the exchange of materials and energy between the cell and its environment. Diffusion occurs when molecules move from an area of higher concentration to an area of lower concentration. This process occurs within the cell membrane, as molecules of solutes move across the membrane as well as through the membrane. Diffusion is important for the transport of substances across cells, which is necessary for metabolic processes and other essential functions. Diffusion is an important process that helps cells to maintain homeostasis.
The water-vascular system of a sea star function in defense.
True
False
Answers
Answer: False
Explanation:
The water vascular system of sea star or star-fish helps in locomotion, capture and transport of food and respiration. It has no role in defence. In fact, the spines on the body have role in defence.
It is important to remember that spines on body and water vascular system are the key traits of the phyla Echinodermata to which the star fish belongs.
state two functions of a microscope
Answers
Answer:
what is microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.
FUNCTIONS : The microscope is one of the most important tools used in chemistry and biology. This instrument allows a scientist or doctor to magnify an object to look at it in detail. Many types of microscopes exist, allowing different levels of magnification and producing different types of images
18. How many elements do not end with the traditional element
suffix of - "ium"?
?
Answers
Answer:
38
Explanation:
There are 118 elements and 80 end in ium, meaning 38 do not
ne ol Ealin. Tutorial
30 of 44
B Save & E
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the
end of the activity, write a brief evaluation of your work.
Activity
A student drew this model to show the flow of convection currents on Earth.
90° desending dry, cold air
66.5°
2
ascending warm,
moist air
ascending warm,
moist air
equator
2
66.5°
90° desending dry, cold air
Part A
Answers
Answer:
72 5 degree
Explanation:
you will have to add 90 and 66.5 and will give you the answer which is 72.5 degree
How did the control group differ from the experimental group in the 2005 peacock butterfly experiment?
Answers
Answer:
They were spotless and soundless
Explanation:
The control group is used as a reference to compare the result obtained from the experimental group.
The control group differ from the experimental group in the 2005 peacock butterfly experiment in ways such as the control groups of butterflies having their spots covered with paints. A small part of the peacock’s wings were also removed to prevent them from making sound.
This validates them being spotless and soundless
The animal that eats another is known as
Answers
Answer:
A predator
Step by step explanation:
Answer:
Carnivore or predator
Explanation:
Carnivores are animals that eat other animals. The word carnivore is derived from Latin and means “meat eater.”
Hope it helps u and sorry if it doesn't
Why do we use anatomical position?
Answers
Answer:
We use anatomical position because it is the position of reference for anatomical nomenclature.
Natural selection is a process by which organisms that are better adapted to their environment tend to
increase in size.
migrate.
evolve new traits.
survive.
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Answers
Answer:
Survive is the correct answer
Explanation:
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others. Individuals with adaptive traits—traits that give them some advantage—are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring. Over time, these advantageous traits become more common in the population