BIOLOGY HIGH SCHOOL

Using the DNA base sequences below, identify which two species are more closely related. Support youranswer.
Species A: CAC GTG GAC AGA GGA CAC CTC
Species B: CAT GTG GAC AGA GGA CAC CTC
Species C: CAC GTA GAC TGA GGA CTT CTC

Answers

Answer 1
Answer: Species A and B would be the most similar because there is only one mutation between the two of them located in the first codon.
Answer 2
Answer:

Answer:

c

Explanation:

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Cell specialization is important during the growth and development of a multicellular organism. This process is most directly regulated by _____________.

Answers

Answer:

atp

Explanation:

In a pond, the pollution of water by human-made pollutants, such as oil and grease, can cause chemical, biological, and ecological changes. As plants begin to die and decompose, carbon dioxide is released. What would happen to the fish in the pond? A) the fish would thrive B) the fish would die off C) the fish would not be affected D) the fish would move to another pond

Answers

When chemical, biological and ecological changes occur the plants start to die and decompose, fish die, carbon dioxide is released. Hence the correct option is B.

What are Ecological changes?

Ecological change also known as environmental change is defined as the alteration or disturbance of the environment usually caused by human impacts and natural ecological processes. Environmental changes include various factors, such as natural disasters, human interference, or animal interactions.

The ecological changes are affected by the following reasons such as habitat change, climate change, invasive species, overexploitation, and pollution. When chemical, biological and ecological changes occur the plants start to die in the pond and start to decompose, fish die, carbon dioxide is released.

Hence the correct option is B.

Learn more about Ecology, here:

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Imao I would most likely go with B) The fish would die cause if its going to be chemical reactions the fish cant breathe air through their gills through that environment and still survive.

What do the similarities among the forelimb bone arrangment of these diverse animals imply about their ancestry?

Answers

Animals share a common ancestor and at least one gene from their parents. Hope it helped you.

The enzyme responsible for converting androgens to estrogens is select one:a. 5 alpha-reductase.
b. Tdf.
c. Aromatase.
d. Amh.

Answers

The answer is C. Aromatase

Predict what would happen to a plant with a genetic defect that produced no central vacuole.

Answers

The plant would shrivel up and die. The central vacuole holds water maintaining turgor pressure in the plant, and without the vacuole, the plant would shrivel. 

Pests have always been a nuisance for farmers. The use of pesticides dramatically improved the success of crops; however, it has been found that some insects are no longer harmed by traditional pesticides. How would Charles Darwin, the man behind the theory of evolution by means of natural selection, explain this phenomenon. A) Through random mutations in DNA, some pests developed a resistance to the pesticide.


B) The chemicals used in pesticides today are not strong enough to kill unwanted pests.


C) The pesticides used in the past caused unwanted mutations in pests causing them to mutate into superbugs.


D) Through repeated exposure to the pesticides, the pests simply got use to to the chemicals and built up a resistance.

Answers

The basis of the process of Natural selection is the random mutation: some organisms develop random mutations which increase their chance for survival and they survive more likely than other organisms and reproduce. 

So the correct answer is:
A) Through random mutations in DNA, some pests developed a resistance to the pesticide.

Answer: A

Explanation: Through random mutations in DNA, some pests developed a resistance to the pesticide. Through random mutations in DNA, some pests became resistant to the chemicals. These resistant forms are the ones to survive, reproduce, and pass on their genes.
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