Which of the following is an example of a species adapting to changing conditions in their ecosystem?

A. Amur leopard populations declining because of the spread of humans into their
habitat

B. Longer walrus" tusks because the oysters they eat burrow deeper into the sea floor

The correct answer would be B.

Explanation:

B is the correct answer because the walrus's tusks gives them an advantage to capture the oysters that are deep in the sea floor.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'