Plant and animal cells are surrounded by a cell membrane, but only plant cells have a rigid ______.
Answer:
have a rigid Cell wall
Which trophic level is always a necessity in an energy pyramid or food chain?
a) primary consumer
b) producer
c) tertiary consumer
d) secondary consumer
I NEED THIS IN 5 MINUTES!!!!
Answer: primary
Explanation: there is alowayss a primary consumer
can someone help me
Match the following vocabulary words with the correct definition.
1 .
phenotype
genes present in a specific trait
2 .
genotype
expression of a trait, or what the trait looks like
3 .
dominant
gene or trait that always expresses itself
4 .
homozygous
gene or trait that is masked when a dominant gene is present
5 .
recessive
pair of genes for a specific trait which are different
6 .
heterozygous
pair of genes for a specific trait which are the same
Answer:
1) Phenotype (Expression of a trait, or what the trait looks like)
2) Genotype (Genes present in a specific trait)
3)Dominant (Gene or trait that always expresses itself)
4)Homozygous (Pair of genes for a specific trait which are the same)
5)Recessive (Gene or trait that is masked when a dominant gene is present)
6)Heterozygous (Pair of genes for a specific trait which are different)
Explanation:
I hope this helps!!!
A vegtable garden is 12 meters long by 7 meters wide. In one square meter, you count two toads. Estimate the population of toads in the garden. SHOW YOUR WORK!
Answer:
168 toads
Explanation:
First we need to find the area of the garden. Area = length x width
Area = 12m x 7m = 84 m²
2 toads/ 1 sq m
84(2) = 168
Answer:168
Explanation:
Why did some scientists continue to study cold fusion, even though the funding was cut off?
a.) curiosity
b.) They knew that something was occurring that they completely didn't understand.
c.) Some scientists believed in fusion
d.) All of the above
Answer:
I thnk D, makes mo sense
Explanation:
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Leachate is produced as:
A) Rainwater absorbs water-soluble compounds in layers of trash
B)Toxic waste is emptied into ponds and streams
C) Metal comes into contact with water
D) Plastic flows into ponds and streams
A.
The liquid formed when rain water filters through wastes placed in a landfill. When this liquid comes in contact with buried wastes, it leaches, or draws out, chemicals or constituents from those wastes
. Describe two different patterns caused by interactions between the Earth, the sun, and constellations (stars).
Answer:
different patterns can be the rotation between night and day, Ocean tides and currents can also be a causeed by atmosphere changes
Explanation:
The word of “seismic”is also used to describe something enormous or highly significant why do you think that is?
1 : of, subject to, or caused by an earthquake also : of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite) 2 : of or relating to a vibration on a celestial body (such as the moon) comparable to a seismic event on earth.
What are the two types of anaerobic respiration? Describe the two in one paragraph.
Answer:
The two main types of anaerobic respiration are alcoholic fermentation and lactic acid fermentation.These strategies of respiration occur while the amount of oxygen available is simply too low to guide cardio respiratory.Alcoholic fermentation converts glucose into ethanol. In alcoholic fermentation, glucose is broken down via glycolysis, and two ATP molecules are released in the method. The pyruvic acid molecules produced for the duration of glycolysis destroy down into ethanol and carbon dioxide. In animals, the technique of lactic acid fermentation, further, happens after the glycolysis process. Pyruvic acid is changed into lactic acid, and muscles is damaged down through lactic acid.
Explanation:
The two types of anaerobic respiration are alcoholic fermentation and lactic acid fermentation.
Explain anaerobic respiration
Some microbes, including yeast, can ferment alcohol. This procedure transforms glucose into ethanol and carbon dioxide. Through a sequence of biochemical processes, glucose is turned into pyruvate, which is then transformed into ethanol.
On the other hand, lactic acid fermentation takes place in different types of bacteria and human muscle cells. Lactic acid is produced during lactic acid fermentation from glucose. When there is a shortage of oxygen, such during vigorous exercise when muscle cells are unable to receive enough oxygen for aerobic respiration, this process takes place. Although lactic acid fermentation results in an accumulation of lactic acid, which can contribute to muscle discomfort and tiredness, it also helps renew the NAD+ molecules required for glycolysis to proceed.
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A city is concerned about global warming and smog. It wants to reduce the impact of its use of fossil fuels. Explain how the city could use technology to reduce fossil-fuel use by changing (a) its transportation, (b) its buildings, and (c) services for city residents.
Answer:
I think its a
Explanation:
cars and stuff use fossil fuels, therefore changing transportation may reduce its fossil fuel usage.
can you guys help me possibly? thanks!!!
How do you think having specialized cells is an advantage for multicellular organisms?
Answer:
These cells are considered the building blocks of life. ... Unlike in unicellular organisms, which can only perform only one function, specialized cells in multicellular organisms allow an organ system to work harmoniously with the other systems in our body.
Explanation:
The drug was tested on a group of 50,000 elderly patients who had cancer.
The tumors in most of the patients did not respond to the treatment.
The scientists concluded that the drug was not effective in fighting cancer.
What is the most important problem with the design of this investigation?
Answer:
the sample size is too small to be valid
Answer:
The bottom one.
The sample size is too small to be valid
Explanation:
Why do they call aries an aries if its not an air sign but a fire sign instead-
Answer:
Beginning with the first sign Aries which is a Fire sign, the next in line Taurus is Earth, then to Gemini which is Air, and finally to Cancer which is Water. This cycle continues on twice more and ends with the twelfth and final astrological sign, Pisces.
not sure if this helps
Matter continuously cycles between the living and nonliving parts of an ecosystem. The flow of energy drives the cycling of matter through ecosystems.
The water, carbon, and nitrogen cycles share patterns in the flow of matter and energy through ecosystems. Describe two different patterns that can be observed in all three cycles.
NEEEEEEDDD THE ANSWER PLSSSSSSSS NOWWWWW
death and feeding process
Water, carbon and nitrogen cycles are biogeochemical cycles that exist in the biosphere to maintain a balance in the flow of energy and matter.
What patterns are observed in the cycles?There are three major biogeochemical cycles - water, nitrogen and carbon - that exist in nature which allow the transfer of matter and energy between the living and non-living things of the biosphere.
All the three cycles involve the exchange of gases from the plants to atmosphere to the animals or microbiota, which is again released back into the atmosphere.
Plants absorb the nitrogen, carbon and water in different forms from the environment which is then passed on.
Another similar pattern seen amongst the three is that humans release carbon, nitrogen and oxygen in various forms.
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A font refers to ________.
A) The location where two air masses meet.
B) An air mass that extends across a large area.
C) A large body of air moved by global wind patterns.
D) A place on Earth’s surface affected by uneven heating.
Answer: i thi
Explanation:
Please help me with this asap! I will mark brainliest!
Explanation:
(1) light and mirror: Reflection occurs
(2) light and wood block: Opaque; Zero reflection(as wood does not transmit light)
(3) light and clear glass: transparent (light passes through)
(4)light and water: Refraction occurs
How does chemical composition affect the characteristics of granitic rocks?
A. Silicon cause granitic rocks to be very dense.
B. Silicon cause granitic rocks to have a dark color.
C. Silicon cause granitic rocks to be lighter in color.
D. Silicon cause granitic rocks to be porous.
Where do the producers get their energy to make food?
Just
1. other plants
2. the soil
3. the animals
4. the sun
Answer:
the sun
Explanation:
the producers would be plants which use photosynthesis to turn energy into food for themselves
Answer:
The answer is the sun
Explanation:
Produces are things like grass, flowers, trees, etc and they get energy to make food from the sun
Q: What do you call an iPhone that isn't kidding around?
A: Dead Siri-ous
Answer:
good one bro
Explanation:
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
True or False: The Calvin cycle is also known as the “light-dependent reaction” because it needs sunlight.
Answer:
false
Explanation: The Calvin Cycle, or light independent reaction, does not utilize sunlight as an input. During the light independent reaction, or the Calvin Cycle, carbon fixation first occurs. CO2 produced during the light dependent reaction reacts with RuBP, ultimately producing PGA.
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HeLp mE I nEeD hElP
Project: Comparing Asexual and Sexual Reproduction
Branily
Answer:
Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique
Explanation:
Hope this helps
Why are Chromosomes arranged in pairs?
A. One chromosome is from the mother, and the other is from the father.
B. DNA is a double helix.
C. The chromosomes are split more easily.
D. Genes can be dominant or recessive
Answer: B
Explanation: because the dna are a double helix and do have a chance to split a little more and let me know if you passed
What is the fourth step of virus reproduction?
A. New virus particles are released
B.the host cell Copies the generic information
C. New virus particles are made
D. The host cell reads the Generic information
Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
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BRAINLIEST
While savannas and temperate grasslands are both types of
grasslands and share many characteristics, they also have
some differences. Compare them below by writing each
characteristic in the correct location. You will use each only
once.
• home to many types of grazers
• experience all seasons of weather
• home to bison
• home to the African elephant
• example: tallgrass prairies of North America
• example: Serengeti in Tanzania
• also known as tropical grasslands
• few trees due to little rainfall
1)
(Savannas)
(Both Types of
Grasslands)
(Temperate
Grasslands)
Answer:
S - Savannas are typically found in tropical or subtropical regions.
S - Savannas tend to have more trees and shrubs.
S - Savanna's climate is drier than that of a grassland.
G - Grasslands are found in temperature regions.
G - Temperature Grasslands are mainly devoid of trees, receive less rainfall than Savannas & endure broader temperature extremes.
G - Grasslands make up 25 percent of the Earth's land surface and dominate in regions with limited rainfall, which prevents forest growth. This results from nearby mountain ranges that cause rain shadows over adjacent open-range lands.
B - Both represent the world's richest and most diverse ecosystems. They both provide a home for a quarter of the world's population and a habitat for thousands of plants and animals.
B - Many species gather in vast numbers, graze on the varied grasses, and can be found nowhere else on Earth. The coexistence between wildlife and grasses is key to healthy ecosystems. Animal migrations regenerate the landscapes, by controlling pests, dispersing seeds, and trampling invasive species. Through this partnership, grasslands and savannahs generate vital benefits for both people and nature.
B - Ecosystems such as these two in specific are essential for climate mitigation – they store carbon, locking it deep in the soil and extensive root systems. They are the source of or support many of the world’s biggest rivers and wetlands, ensure food security, support livelihoods, and are embedded in the cultural identity of millions of people.
(Also, A savanna or savannah is a mixed woodland-grassland<---similarity)
Explanation: Just research. I decided to state 3 characteristics for both The Savanna and The Grasslands, and then 3 for "B" (both).