BIOLOGY COLLEGE

Scientists today can use many investigative methods to study evolution. Which method was developed after Darwin'stime?
O DNA comparisons
o observations
O comparison of fossils
O experimentation

Answers

Answer 1
Answer:

Answer:

DNA comparisons

Explanation:

The molecular nature of DNA and its role in inheritance and evolution was not known during Darwin's time.  Therefore, it was not possible to compare similarities in DNA sequences between different species to understand their evolutionary relationships.  

This type of method was not in regular use until the 1980s/1990s, when sequencing and DNA amplification technologies were invented

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Describe what will occur the population if it increases in number when food is scarce?

Answers

Answer:

more people will die

Explanation:

If you have a big population and little food mor peple will die.
There will also be riots in the streets, criminals acts will increase, this could come from stealing to murdering for food, the animal kingdom will basically go near extinction if the government can’t control its people from hunting, ultimately governments might collapse under the demands of the people.

Can someone help me i'm stuck on this question.play an important role in an ecosystem, breaking down dead organisms and recycling the nutrients.

Decomposers

Producers

Heterotrophs

Answers

Decomposers  get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers releasenutrients, such as carbon and nitrogen, back into the environment. These nutrientsare recycled back into the ecosystem so that the producers can use them.
Decomposers play an important role in an ecosystem, breaking down dead organisms and recycling the nutrients.

Which of the following observed chimpanzee behaviors caused scientists to reevaluate what it meant to be human? a. kissing b. holding hands c. tool making d. speaking

Answers

Answer:

C.) tool making.

Explanation:

Answer:

c

Explanation:

Dina walks out the door and a blast of cold air greets her. She goes back into her house and puts a coat on.What is the stimulus, the sensory receptor, and the response in the scenario?

Answers

The stimulus is the temperature of the air. Sensory receptors in the skin send signals to the brain that the temperature is cold. Motor neurons stimulate muscle cells so that Dina can move to put on her coat.

Answer:

Motor neurons stimulate muscle cells so that Dina can move to put on her coat.

Explanation:

What is the purpose of the cellular process

Answers

The correct answer is H. transcribing information in the DNA sequence for the use by the cell

Explanation

The process shown in the image is DNA transcription, this is the first procedure in gene expression. In this process, the information contained in the DNA sequence is transferred to the protein sequence using various RNAs as intermediaries. During this, DNA sequences are copied to RNA by an enzyme called RNA polymerase that synthesizes messenger RNA (maintains DNA sequence information for the use by the cell), so DNA transcription could also be called messenger RNA synthesis. According to the above, the correct answer is H. Transcribing information in the DNA sequence for the use by the cell.

HELP ASAP When were stem cells first removed from embryos? Why is this controversial?
What are the current U.S. laws regarding embryonic stem cells? In your
opinion, should scientists continue research with stem cells, or if you had a
disease and would benefit from the stem cell therapies, would you want
scientists to continue their research?

Answers

Answer:

They should not continue with research of stem cells

Explanation:
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Help me with this please​