20. The model that assumes that evolution proceeds with slow successive change in a given evolutionary line is referred to as A. successive descent model. B. punctuated equilibrium. C. gradualism. D. the allopatric model. E. the sympatric model.

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Gregory Marsh

Social Studies

31 August, 13:29

20. The model that assumes that evolution proceeds with slow successive change in a given evolutionary line is referred to as A. successive descent model. B. punctuated equilibrium. C. gradualism. D. the allopatric model. E. the sympatric model.

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Cullen Erickson · Answer 1

Answer: C. Gradualism

Explanation: Gradualism is the model that assumes evolution occur slowly with consecutive changes in an evolutionary line. This theory states that new species evolve from existing ones through gradual changes and not changes that are major or abrupt. A good example is the feature in Tigers that they use as camouflage to deceive prey, these stripes where developed over time.