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777dan777 [17]
3 years ago
10

Describe how the ancestors of whales moved from the land to the sea.

Biology
1 answer:
Natalija [7]3 years ago
4 0

Answer:

To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.

Explanation:

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You have a strain of bacteria that is defective for DNA glycosylase activity. You expose one culture of this strain to EMS and t
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Answer:

Bacteria under successive rounds of selection may acquire genetic resistance to the treatment with mutagenic compounds including ethyl methanesulfonate (EMS).  

Explanation:

Artificial selection is a process known to generate resistance of the organisms under treatment. For example, this type of selection has been reported to generate resistance to the treatment with different chemical compounds including mutagenic chemical compounds (in this case EMS), antibiotic drugs, etc.

4 0
3 years ago
What is uncoiled stringy DNA called
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Explanation:

What is uncoiled, stringy DNA called? It is called chromatin. How many pieces of chromatin does a human diploid cell have? Human diploid cells have 46 pieces of chromatin.

8 0
3 years ago
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Answer:

The correct answer is D. fitness

Explanation:

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5 0
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Where is the information stored in DNA
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How many electrons are in the outermost energy level of an oxygen atom as it shares electrons with hydrogen atoms as part of a w
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