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Through ______, a body part of an ancestor is modified differently in different lines of descent. a. homologous evolution b. convergent evolution c. analogous evolution d. divergent evolution
Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
Through ______, a body part of an ancestor is modified differently in different lines of descent.
- a. homologous evolution
- b. convergent evolution
- c. analogous evolution
- d. divergent evolution
Concept introduction: According to evolutionary biology, divergent evolution is the accumulation of many changes in some animal groups that convert them totally into a new species. The changes thus produced might be essential for their adaptation in the new environment.
Explanation of Solution
Reason for correct answer: Every organism possesses their own fundamental characters that are essential for their survival in the respective environment. They also undergo some characteristic changes in their body for adapting them in the changed environment. The changes they thus undergo might be very far from their ancestral group. The structures or body parts evolved by this way are known as homologous organs.
Option d. is given as “divergent evolution”. Divergent evolution always results in the modification of different body parts in different descents.
Therefore, option d. is the correct answer.
Reasons for incorrect answers:
Option a. is given as “homologous evolution”...
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