What trait variation did Charles observe after studying the Galapagos finches?

Answers

Answer 1

Answer:

He noticed that each finch had a different type of beak in order to obtain whatever food it ate.

Explanation:


Related Questions

Where are coral reefs most threatened by pollution, and what effects has pollution had so far?

Answers

Answer:

In the great barrier reef

Explanation:

It has effected plants and sea creature populations because of their homes being destroyed

Coral reefs are most threatened by pollution, as they are becoming extinct due to air pollution, water pollution, etc., and then human interference again lets them go extinct, and these reefs that are present in the site of the population are lost mostly.

What is the significance of the coral reefs' extinctions?

Coral reefs are negatively affected by pollution and human activities, which include coral bleaching; and again, climate change that is caused by human activities such as the burning of fossil fuels, etc. induces the coral bleaching. Different chemicals that mix with water destroy the corals and the algae present in them.

Hence, coral reefs are most threatened by pollution, as they are becoming extinct due to air pollution, water pollution, etc., and then human interference again lets them go extinct, and these reefs that are present in the site of the population are lost mostly.

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Which statement reveals a property that can be used to identify a mineral?
A mineral is found in Africa.
O A mineral is made in a laboratory
O Amineral is used to make medicine,
A mineral has hexagonal-shaped crystals.
I think it’s the last one but can someone confirm it

Answers

The statement reveals a property that can be used to identify a mineral is A mineral has hexagonal-shaped crystals.

Which is not a property that can be used to identify a mineral ?

Colour is not a effects that can be used to determine a mineral. Natural occur in, solid, inorganic, and crystalline form, and the exact chemical arrangement , have five properties of a mineral.

Thus, option "D" is correct, having hexagonal-shaped.

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Answer:
Its d

Explanation:
I took the test

Which choice has eukaryotic animal cells?


oak


liver


Lactobacillus


virus

Answers

I think B I am not sure though. But if I was doing this I would probably pick B. Hope this helps :D

Answer: He's correct, liver.

Explanation:

Pollen makes a tube to the ovary through the what of a flower

Answers

Answer:

After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary. Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules.

Answer:

Explanation:

give the other person brainliest

Definition of the primary structure of a protein

Answers

The linear sequence of amino acids within a protein is considered the primary structure of the protein. Proteins are built from a set of only twenty amino acids, each of which has a unique side chain. The side chains of amino acids have different chemistries.

Creating a list of anxiety-triggering situations and training in relaxation are important aspects of

client-centered therapy.
dialectical behavior therapy.
systematic desensitization.
aversive conditioning.

Answers

Explanation:

it is systematic desensitization.

Creating a list of anxiety-triggering situations and training in relaxation are important aspects of SYSTEMATIC DESENSITIZATION.

Systematic desensitization is a type of therapy based on the combination of relaxation methods with gradual exposure to the fear (phobia).

The objective of the exposure to the fear is that the patient feels progressively less anxious about his/her phobia.

In consequence, systematic desensitization increases the feeling of self-control and gradually reduces fear.

In conclusion, creating a list of anxiety-triggering situations and training in relaxation are important aspects of SYSTEMATIC DESENSITIZATION.

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W Within a forest ecosystem, there is a large amount of diversity among members of a warbler species. Of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers? Pay special attention to the chromatids.​

Answers

Answer:

Explanation:

How a Forest Ecosystem Matures . Forest ecosystems tend to always be moving toward maturity or into what foresters call a climax forest. This maturing, also called forest succession, of the ecosystem increases diversity up to the point of old age where the system slowly collapses. One forestry example of this is the growth of trees and the entire system moving toward an old growth forest.

A Large amount of warbler species, crossing over between homologous chromosomes, is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.

There are different mechanisms involved in producing genetic variation among descendants, are-

Crossing-over between homologous chromosomes (prophase 1), The Random lining of homologous chromosomes (metaphase 1),

Random fertilization

The Crossing-over events occur between two homologous chromosomes within the equatorial plane and make the daughter cells genetically different from the first one.

The Chiasma is the position where two homologous chromatids interchange genetic information, giving an area for brand spanking new genetic material or information to be provided to descendants.

After crossover, homologous chromosomes get separated again. In the attached image there are four different stages of meiosis.

Stage C is the one that contributes foremost to diversity. We can see that crossover has already occurred between homologous chromosomes and that they have already interchanged segments.

In the image, you will see the difference between chromosomes that have gone through the crossing over mechanism, and chromosomes that have not. The difference in color represents segments interchange and variation.

Therefore, that answer shows the contribution to diversity among the warblers.

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Which statement is true for all prokaryotic and eukaryotic organisms?
Both types of organisms have DNA contained within a nucleus as genetic material.
Both types of organisms transform energy from sunlight into chemical energy.
Both types of organisms assemble proteins through transcription and translation.
Both types of organisms are made of cells, tissue, and organs that work together.

Answers

Answer:

Both types of organisms have DNA contained within a nucleus as genetic material

Answer:

tt

Explanation:

1
Place the following events in sequence:
A) Food enters your large intestines
B) Food enters your small intestines
C) Food enters your esophagus
D)Food enters your mouth
E) Food enters your stomach

Answers

Answer:

D; C; E; B; A

Explanation:

The mouth is the first part of the gut (gastrointestinal tract). When we eat, food passes down the gullet (oesophagus), into the stomach, and then into the small intestine. The small intestine has three sections - the duodenum, jejunum and ileum.

D)Food enters your mouth
C)Food enters your esophagus
E)Food enters your stomach
B)Food enters your small intestines
A)Food enters your large intestine

If you cross a mussel with dark , zebra-striped shells with a mussel with solid light-colored shells, how many offspring would you expect to have the dark , zebra-striped shells ?

Answers

Answer:

I would say 75%

Explanation:

how do you find this day?what are the positive things that happened?what are those things that made your irritated or upset?​

Answers

Answer:

Explanation:

very great at the morning but now i am bored..

no positive things happened till now

the internet is disturbing ang irritating me i can't completing my work.

I was very nervous about starting school tomorrow but my grandma gave my some new journals which cheered me up

10. As one of the evidences of evolution supported by Darwin, structures that have different mature forms but arise from the same embryonic tissues are called

F. Upper limb structures
G. Vestigial structures
H. Analogous structures
J. Homologous structures​

Answers

Answer:

J

Explanation:

The Answer could be J.Homologous Structures

For the Rock Pocket Mouse, what accounts for the difference in the color of the environment?

Answers

Answer:

Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico, however, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.

Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico,

yet, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.

Why are rock pocket mice different colors?

There is natural variation of coat color in the population of rock pocket mice living on the lava flow.

The mutations can cause a change in coat color, and  these genetic changes are passed on to offspring.

Thus, due to the Mc1r gene there are difference in the color of the environment.

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The molecule Phopholipase is most likely what?

- Sugar
- Enzyme
- Bacterium
- DNA

Answers

Answer:

Enzyme is the molecule Phopholiphase is mostly likely.

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

Hi you’ve only provided one of the options but I don’t know if this will help. The cell membrane is a Thin flexible barristers that surround all cells. Selectively permeable is some substance to pass across while others cannot. Hopefully that can give you give an idea.

What is true about Carbon facts

Answers

Answer:

Carbon usually has a valence of +4,

Explanation:

cell is immersed in a
Plasmolysis occurs when a/n)
solution.
O animal; 3X salt solution
O plant; pure water
O animal; pure water
O plant; 3X salt solution

Answers

Answer:

Plasmolysis occurs when a plant cell is inmersed in a 3X salt solution.

Explanation:

Plasmolysis is a phenomenon only observed in plant cells, and consists of cell dehydration accompanied by separation of the membrane and cell wall when the cell is exposed in a hypertonic environment.

When a plant cell is in a hypertonic solution —such as 3X salt solution— the permeability of its membrane allows water to escape, so the cell dehydrates and reduces its size. The cell wall is rigid and maintains its shape, but the cell membrane separates from it, which is known as plamolysis.

The other alternative answer combinations are not correct because:

Plamolysis does not occur in animal cells. Pure water does not produce plasmolysis.

Pls help i dont understand :( will give Brainliest + 25 points!!

Answers

Answer:

a or b

Explanation:

sorry cant really classify it brainlest on the effort tho?

Which equation describes what happens in photosynthesis?

Answers

Answer:

Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.

Carbon dioxide, water and light are all needed for photosynthesis to take place.

Photosynthesis happens in the leaves of a plant.

Explanation:

Why the other side of the mountain is greener than of the other side?

Answers

really hope this help ! if not message meee

Describe the changes that a country undergoes as it passes through the three stages of the demographic transition. Use the United States as an example.

Answers


In stage 1, both birthrate and death rate are high, and the population grows slowly. Stage 1 describes the US for the early years of history. Then during Stage 2, improvements in health care, sanitation, and nutrition all people to live longer and reduce the death rate. The birthrate however, remains high during this stage so the population increases rapidly. This occurred in the US in the 1800s. Eventually, birthrate decreases to match the low death rate and the population growth slows and eventually stops. This is the US today.

If your going to a sandy beach on a sunny day, which would feel warmer- the sand or the water?

Answers

Answer:

the sand

Explanation:

The period during smooth muscle contraction of sustained tension is referred to as the

Answers

Answer:

I could be wrong but I believe the answer is fused tetanus.

Explanation:

Searched it up, but it could be incorrect.

can someone help me identify this? plss i need this for a grade

Answers

Free points srry
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Which section of the article BEST explains how
mole rats developed the strange metabolic
strategy?
A
"Super-Tolerant To Low Oxygen Conditions"
B
"Mice, Naked Mole Rats Differ In Tests"
С
"Blood Fructose Levels Start To Rise"
D
Metabolism Switch Gives Them Boost Of
Energy

Answers

Answer:

D

Explanation:

is D because is the only one who talk about more about metabolism. I hope it help you

which of the following rock type(s) may be weathered to become sediment and form a sedimentary rock?
A) Igneous rock
B) Sedimentary rock
C) Metamorphic rock
Igneous, Sedimentary and Metamorphic rocks

Answers

Answer: B i believe

Explanation:

C- Igneous , Sedimentary, and Metamorphic rocks.

They can all be eroded / broken down to become sediments.

Sugars can link together to form?
protein
protein

lipids
lipids

amino acids
amino acids

DNA
DNA

starch
starch

Answers

Starch is the answer..

if one species in a community dies out or moves, the community will

Answers

The Community will be affected because all Species Interact and interconnected the Community can be affected by changes of population size

Answer:

The community will slowly decline, or be just fine, or be better off.

Explanation:

Wolves being killed in Yellowstone showed that Yellowstone suffered, because there was nothing to kill the elk, so their population exploded and they ate everything.

If certain rats were gone in certain areas, then the community/environment would be fine, because rats eat birds and other small animals (they eat too many of them).

And if stray cats were gone then certain forests would be better off and see an increase in birds population, stray cats eat birds.

What is the term for "anything that takes up space and has mass"?

A.
Water

B.
Atom

C.
Electron

D.
Matter

Answers

d


hope that helped:))

Which human activity is correctly paired with the greenhouse gas that it increases?
rice cultivation and water vapor
landfilling and carbon dioxide
deforestation and methane
sewage treatment and nitrous oxide

Answers

Answer:

land filling and carbon dioxide

Explanation:

landfilling and carbon dioxide human activity is correctly paired with the greenhouse gas that it increases.

What is Landfilling?

The emission of methane gas from landfills is the primary environmental issue. Methane gas is generated during the breakdown of organic material in landfills.

Methane is one of the most potent greenhouse gases and a major cause of climate change since it is 84 times more efficient than carbon dioxide at absorbing heat from the sun.

In addition to methane, landfills also release water vapour, carbon dioxide, and small amounts of oxygen, nitrogen, and other non-methane organic molecules. If not under control, these gases can also contribute to climate change and lead to pollution.  

Therefore, landfilling and carbon dioxide human activity is correctly paired with the greenhouse gas that it increases.

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