What are the latest developments on research on Earth’s internal structure.
Answers
Answer:
The internal structure of the earth is like a steel ball that has been inserted into the middle of a rubber ball that has then been rolled around in the mud which sticks to it.
Explanation:
The mud sticking unevenly on the outside of the ball represents the earth's crust. The rubber ball represents the mantle below the crust, and the steel ball inside is the earth's core. These are the basic layers.
Inside the earth, the mantle itself consists of an upper mantle and a lower mantel, and the iron consists of an outer core and inner core. The separations occur where the state of the substance changes. For the iron , the outer core is closer to a liquid, while the inner core is closer to a solid. Both are intensely hot.
If you need a 3-D representation of the internal structure of the earth, cut a spherically shaped avocado in half, and keep the half with the seed or pit. The pit is the core, the fruit is the mantel and the skin is the earth's crust. You can add in the other divisions as necessary.
Related Questions
Select the correct answer from each drop-down menu.
A
is an agent that causes disease. All
are pathogens.
Answers
A pathogens(C) is an agent that causes disease. All viruses(C) are pathogens.
What are pathogens?For Part 1, the correct answer is C. Pathogen. A pathogen is an agent that causes disease. All pathogens are infectious agents, but not all infectious agents are pathogens. For example, the common cold is caused by a virus, but the virus is not considered a pathogen because it does not usually cause serious illness.
For Part 2, the correct answer is C. Viruses. Viruses are the smallest and simplest pathogens. They are not cells, and they cannot reproduce on their own. They must infect a host cell in order to replicate.
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Complete question:
Select the correct answer. A __ is an agent that causes disease. All ___ are pathogens.
Part 1
A. Bacteria
B. Germ
C. Pathogen
Part 2
A. Bacteria
B. Fungi
C. Viruses
A person is sweating, has large pupils and a rapid pulse. This means his _____ nervous system is activated.
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A person is sweating, has large pupils, and a rapid pulse. This means his sympathetic nervous system is activated.
The sympathetic nervous system is responsible for the "fight or flight" response, which is the body's response to a perceived threat or stressor. When the sympathetic nervous system is activated, it stimulates the release of adrenaline and other hormones that prepare the body for action.
Sweating is a response to increased body temperature, which can occur as a result of increased metabolic activity due to the release of adrenaline. Pupil dilation allows more light to enter the eyes, which can improve visual acuity and help detect potential threats. A rapid pulse is also a response to increased metabolic activity, as the heart pumps more blood to supply the body with oxygen and nutrients needed for action.
Overall, the activation of the sympathetic nervous system prepares the body for physical activity and helps it respond to potential threats or stressors.
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. Which of the following can create an ocean current?
*
Wind
Tides
Density
All of the Above
Answers
a wildtype allele and a mutant allele differ by a few nucleotides in the gene sequence for an important protein in neuron metabolism. in an individual who is a heterozygote, both the mutant and the wildtype proteins are synthesized in neurons. at the organismal level, the mutant allele is:
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Wild type and mutant are recessive alleles. The allele that is not expressed when there is heterozygosity. untamed type a person with a typical phenotype.
the trait that is typically present in an organism's natural population. mutant a person who deviates from the typical phenotype in some way. The terms "wild type" and "mutant" refer to people with normal phenotypes shared by the bulk of the natural population, while "mutant" refers to those whose phenotypes deviate from those of the normal population. Melanocytes, a kind of cell, are responsible for producing the protein melanin. Melanin has a crucial role in shielding the skin from the sun's UV rays, which may damage DNA and lead to skin cancer. Albinism is brought on by both alleles of the gene being autosomal recessive. Recessive mutant alleles are those that result in proteins with diminished or nonexistent function.
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Both mutant and wild-type alleles are recessive. the allele that is silenced in a heterozygote situation. a person with a characteristic phenotype is the untamed type.
A characteristic that is frequently seen in an organism's natural population. a mutant is a person whose phenotype differs in some manner from the norm. "Wild type" and "mutant" refer to individuals whose phenotypes are similar to those of the majority of the natural population.
"Mutant" describes individuals whose phenotypes differ from those of the normal population. The cell type called melanocytes is in charge of making the melanin protein. Melanin is essential for protecting the skin from UV radiation, which can harm DNA and cause skin cancer.
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Why do plant cells need chloroplasts?
Answers
Answer:
Chloroplasts are vital organelles in order for plants to survive.
Explanation:
Chloroplasts capture and convert light energy into chemical energy for the plant to consume through the process of photosynthesis.
how is a green plants way of making food different from an animals way of feeding
Answers
Answer:
Green plants make their own food through a process called photosynthesis, in which they use energy from sunlight to convert carbon dioxide and water into glucose and oxygen. The glucose is then used as a source of energy and as a building material for growth and reproduction. The oxygen is released into the atmosphere as a byproduct.
Animals, on the other hand, cannot make their own food and must consume other organisms in order to obtain energy and nutrients. They obtain food through hunting and foraging, or by consuming other organisms such as plants or other animals.
In summary, green plants make their own food through photosynthesis while animals consume other organisms for food.
Explanation:
Answer:
Green plants use photosynthesis to make food, while animals consume other organisms or organic matter as a source of food. Photosynthesis is a process by which plants use energy from the sun, carbon dioxide from the air, and water from the soil to produce glucose and oxygen.
Explanation:
Green plants use photosynthesis to make food, while animals consume other organisms or organic matter as a source of food. Photosynthesis is a process by which plants use energy from the sun, carbon dioxide from the air, and water from the soil to produce glucose and oxygen. This glucose is used by the plant as a source of energy and as a building block for growth and reproduction. In contrast, animals are heterotrophic, meaning they cannot produce their own food and must consume it from other sources. They obtain food through hunting, grazing, or scavenging, and then use the energy and nutrients from that food for growth, reproduction, and maintenance of bodily functions.
Explain three cause and effect relationships between the human activities and the measurable changes in the Earth system represented in the Understanding Global Change model
Answers
Answer:
Humans are gradually altering the climate and the earth's temperature through burning fossil fuels, destroying forests, and rearing animals.
Explanation:
This significantly increases the amount of greenhouse gases already present in the atmosphere, increasing the greenhouse effect and contributing to global warming.
Climate change is mostly caused by the greenhouse effect. Some gases in the Earth's atmosphere act as greenhouse glass, trapping heat from the sun and preventing it from escaping into space, causing global warming.
Hope it helps;
Though all humans start off the same way, give a brief explanation about what makes us all so different
Answers
inherited traits are governed controlled by
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Inherited traits are controlled by genes. In this case, genetic material.
Genetic material.
Mt. Paricutin erupts explosively. Little lava helps build the cinder cone. It is almost all ash and rock. What type of magma does it most likely contain?
1) Basaltic
2) Andesitic
3)Rhyolitic
40 Pyroclastic
Answers
How are the genetics of natural and artificial selection the same?
Answers
Answer:
Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. For this reason, selective breeding is sometimes called artificial selection.
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.
Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
How dose human activity effect the water cycle
Answers
_______ gland has functions as part of the endocrine system by secreting a hormone that functions as part of the endocrine and immune system
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Thymus gland has functions as part of the endocrine system by secreting a hormone that functions as part of the endocrine and immune system.
There are currently 28 frogs in a (large) pond. The frog population grows exponentially, tripling every 6 days. How long will it take (in days) for there to be 260 frogs in the pond? Time to 260 frogs: days The pond's ecosystem can support 1300 frogs. How long until the situation becomes critical? Time to 1300 frogs: days
Answers
The population of frogs in a pond grows exponentially, tripling every 6 days. Initially, there are 28 frogs.
Time to 260 frogs:
A = P(1 + r/n)^(nt)
260 = 28(1 + 3/1)^(6t)
9.2857 = 4^(6t)
(6t) log 4 = log 9.285
t = log 9.2857 / log 4
2.378 days to reach 260 frogs.
Time to 1300 frogs:
A = P(1 + r/n)^(nt)
1300 = 28(1 + 3/1)^(6t)
46.4286 = 4^(6t)
(6t) log 4 = log 46.4286
t = log 46.4286 / log 4
6.027 days until the pond's ecosystem can support 1300 frogs.
Therefore, it will take around 2.378 days to reach 260 frogs and approximately 6.027 days until the situation becomes critical when the pond's ecosystem can support 1300 frogs.
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What phase is the indicated cell currently in?
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Answer:
In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase. During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
Explanation:
Vivienne visits a botanical garden in a nearby city and sees a plant commonly called Touch-Me-Not. She touches the tip of the leaf of this plant, known as Mimosa pudica, with her finger and watches the leaves close. She later learns that chemicals trigger this reaction. Plants respond to stimuli in different ways. Read each of the words or phrases sentences that describe a kind of tropism. Drag each into the correct box.
Answers
Stem is an example of negative gravitropism. Thus the correct matches are A-4, B-1, C-3, and D-2.
What is tropism?
A tropism is a phenomenon, which indicates the growth or turning movement of an organism, usually a plant, in response to an environmental condition. Types of tropism are shown by the parts of plants.
The phrases with the types of tropism are matched below
Stem is an example of positive gravitropism as the stem moves in an upward direction.The root is an example of negative gravitropism as it moves in a downward direction.Coils around any object it touches are an example of thigmotropism.Grows toward light are an example of phototropism.Learn more about tropism, here:
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Your question is incomplete. The complete question would be
A. Stem is an example of a?
B. The root is an example of a?
C. Coils around any object it touches are an example of?
D. Grows toward light is an example of a?
Types of tropism
1. negative gravitropism.
2. phototropism.
3. thigmotropism.
4. positive gravitropism.
All the following statements about an epithelium are TRUE EXCEPT ONE. Which one is the EXCEPTION? A.) Is avascular
B.) Has a free surface
C.) Has a limited capacity for cells to divide
D.) Has nerve fibers
E.) Has no or very little extracellular material
Answers
The statement that is NOT true about an epithelium is: Has a limited capacity for cells to divide. Option C is correct.
Epithelia have a high capacity for cells to divide and regenerate, which is essential for their function as a protective barrier and as a lining for various organs and structures in the body. The other statements are true about epithelia:
Epithelia are avascular, meaning they have no blood vessels of their own and must rely on diffusion from nearby blood vessels for their nutrient and oxygen supply.
Epithelia have a free surface, which is exposed to the external environment or to internal body cavities, and may have specialized structures such as cilia or microvilli.
Epithelia have nerve fibers that help to detect and respond to changes in their environment.
Epithelia have little or no extracellular material, as their cells are tightly packed together with minimal space between them.
Hence, C. Has a limited capacity for cells to divide is the correct option.
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Help.. 14 _____ are substances that can cause cancer.
15
Scientists join cancer cells with antibody-producing white blood
cells to produce _____.
Answers
Answer:
14. Carcinogenic
15. Not sure. I believe it is monoclonal antibodies.
The series of predictable changes that occurs in a community over time is called
a
climate change.
b
population growth.
c
climax community.
d
ecological succession.
Answers
Answer:
D
Explanation:
1. In the 1950s, many scientists thought that proteins, not DNA, carried genetic information. Why did proteins seem better suited for storing genetic information?
Answers
Explanation:
In the 1950s, many scientists thought that proteins, not DNA, carried genetic information. ... Proteins seemed better suited because there are many different types of proteins with different shapes and functions, just like there are many different types of inheritable traits.
In science, a way of explaining an object or events by using a set of facts is a(n) ?.
science order and design homework
Answers
In science, a way of explaining an object or events by using a set of facts is a scientific theory.
In general , a scientific theory is a well established explanation of some aspect of the natural world that is based scientific and empirical evidence and is thoroughly tested and confirmed by a series of observation and experimentation that is having a justified result.
Also , A scientific theory is generally considered the most reliable form that a scientific knowledge may consists of. A scientific theory is also thoroughly and rigorously tested and supported by multiple lines of evidence and results.
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when aging muscles are immobile, they lose about up to how much strength per day?
Answers
When aging muscles are immobile, they can lose up to approximately 5% of their strength per day.
Immobility, particularly in aging muscles, can lead to a phenomenon known as muscle atrophy or muscle wasting. When muscles are not regularly used or engaged in physical activity, they undergo structural and functional changes that result in a decline in strength. Research suggests that in older individuals, muscle strength can decrease at a rate of approximately 5% per day of immobility. This loss of strength occurs due to various factors, including a decrease in muscle fiber size, decreased protein synthesis, and changes in neuromuscular connections. It highlights the importance of regular physical activity and exercise to maintain muscle strength and function, especially in aging populations.
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Compare between Atrium and ventricle in one point
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See the attached file!!(≡^∇^≡)
drosophila fruit flies produce gametes with one of each kind of chromosome. these gametes are called
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Drosophila fruit flies produce gametes with one of each type of chromosome. Gametes are the terms used to describe these cells (diploid, haploid).
Each (heterologous, homozygous, heterozygous, homologous) chromosome has one copy of each (allele, gene). These cells have chromosomes that are (1/2N, N, 2N, and 4N).
The typical fruit fly, Drosophila melanogaster, is just around 3 mm long and 2 mm wide. Its color is yellow-brown (tan). It features a spherical head, three tiny simple eyes, three larger red compound eyes, and short antennae. The size difference between the sexes is marginal.
As a result, the female fruit fly will produce two different types of gametes due to the placement of the two genes w m and w + m+ on the pair of X-chromosomes.
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I need help again, sorry
Answers
1,500 Kcal of energy will be transferred from rabbits to weasels
150 Kcal of energy will be transferred from weasels to eagles
Which of the following pairs is an example of convergent evolution?
The bones in a whale's fin and a bird's wing
The bones in a bat's wing and a cow's hoof
A dragonfly's wing and a hawk's wing
Flying squirrels (placentals) in North America and Sugar Gliders (marsupials) in Australia
Answers
The pair of examples that best illustrates convergent evolution is the bones in a bat's wing and a bird's wing. Convergent evolution refers to the process by which unrelated organisms independently evolve similar traits or characteristics to adapt to similar environmental pressures.
In this case, bats and birds are not closely related, yet both have evolved wings with similar bone structures to enable flight. The other options do not represent convergent evolution as they either involve closely related species (flying squirrels and sugar gliders) or organisms with different structures and functions (whale's fin and bird's wing, dragonfly's wing and hawk's wing, bat's wing and cow's hoof).
Convergent evolution occurs when unrelated organisms develop similar traits or characteristics in response to similar environmental demands. In the case of the bones in a bat's wing and a bird's wing, both organisms have independently evolved the ability to fly and have wings with similar bone structures. Despite bats being mammals and birds being avians, their wings serve the same purpose and have undergone convergent evolution.
The other options do not demonstrate convergent evolution. The bones in a whale's fin and a bird's wing, for example, serve different functions and are not the result of independent evolutionary processes. The same applies to a dragonfly's wing and a hawk's wing, which belong to different types of organisms and serve different purposes.
The flying squirrels in North America and sugar gliders in Australia are not examples of convergent evolution either, as they are both members of the order Rodentia and have a common ancestor. Their similarities are a result of shared ancestry rather than independent evolution in response to similar environmental pressures.
Therefore, the best example of convergent evolution among the given pairs is the bones in a bat's wing and a bird's wing, where two unrelated organisms have independently evolved wings for flight with similar bone structures.
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During convection, hot material then moves to the side and . This circular pattern is called a convection current.
Answers
the answer of the missing blank is: it cools then sinks
What diagram demonstrates how crossing-over contributes to genetic variety during meiosis?
Answers
Answer:c
Explanation:trust me
The diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
Crossing over refers to the recombination or interchange of genetic material. This process (crossing over) occurs between non-sister chromatids during meiosis.Crossing over specifically occurs in the prophase I of meiosis.In conclusion, the diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
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Why are symbiotic relationships important in an ecosystem?
Answers
Answer:
Information:Symbiotic relationships are important because they are a major driving force of evolution. This networking and cooperation among species allows them to survive better than they would as individuals.
if glucose is in higher concentration outside the cell than inside, but the plasma membrane and other surface layers of the cell do not allow glucose to pass through, which is the most likely type of transport for glucose? and Why?
a simple diffusion
b Osmosis
c Facilitated diffusion via a gated channel
d Facilitated diffusion via an aquaporin
e Facilitated diffusion via an ion channel
Answers
Answer:
a
Explanation:
ok ok as you were saying you said it is hard for the glucose concentration in the body this also had to go out so but the plasma membranes and other surfaces layers cell layers of the layer of the soil do not allow to close glucose to pass through which is most likely type of transport type of transport for kids and you still said why it is because it gives energy to the body