AP BIOLOGY

EVOLUTION

PATTERNS OF EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two organisms that have a common ancestor but overtime evolved into different species. What is this called
A
convergent
B
divergent
C
coevolution
Explanation: 

Detailed explanation-1: -Divergent evolution occurs when two separate species evolve differently from a common ancestor. Speciation is a result of divergent evolution and occurs when one species diverges into multiple descendant species. Darwin’s finches are an example of this.

Detailed explanation-2: -Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.

Detailed explanation-3: -Divergent evolution is the process whereby groups from the same common ancestor evolve and accumulate differences, resulting in the formation of new species. Divergent evolution may occur as a response to changes in abiotic factors, such as a change in environmental conditions, or when a new niche becomes available.

Detailed explanation-4: -Other Common Examples of Divergent Evolution Human and apes evolved from a common primate ancestor. Similarly, wooly mammoth and elephants have diverged from a common ancestor. Divergent evolution is exemplified in the diversity of orchids with different adaptive traits.

Detailed explanation-5: -Divergent evolution is commonly defined as what occurs when two groups of the same species evolve different traits within those groups in order to accommodate for differing environmental and social pressures. Various examples of such pressures can include predation, food supplies, and competition for mates.

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