Analogous Features Such as Spines and Fleshy Stems of American

question 36

Multiple Choice

Analogous features such as spines and fleshy stems of American cacti and African euphorbias are examples of ________, adaptation to similar environmental conditions.

• A) common ancestry
• B) convergent evolution
• C) reproductive isolation by polyploidy
• D) sympatric speciation
• E) post-zygotic barrier leading to reproductive isolation

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