Genetic species A&T Explain how convergent and divergent evolution can take part
Answers
Explanation:
Convergent Evolution
Convergent evolution is seen in how distinct species have evolved similar traits in response to a similar environment or pressure due to natural selection. An example of this is the streamlined, bullet-type shape of sharks and dolphins that allows them to swim fast through the water. However, sharks are fish and dolphins are mammals and they are very far apart on the evolutionary tree. Because organisms that do not have a common ancestor can evolve in the same ways is powerful evidence for natural selection.
Divergent Evolution
As the name implies, divergent evolution shows how species can change slightly over time and separate (diverge) into new forms. For example, in vertebrates like pigs, birds, monkeys and whales, the forelimbs have the same general sets of bones, but they have been modified over time so the animals can use their forelimbs in very different ways. Divergent evolution is studied on a larger scale such as how the current diversity of life on Earth evolved from the first living cells, to a smaller scale where natural selection caused humans and apes to evolve from a common ancestor.
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