In speciation which of the following is mismatched?
A. sympatric speciation-absence of a geographic barrier
B. postzygotic isolation-hybrid offspring sterility
C. adaptive radiation-chance for new species to adapt to new habitats
D. allopatric speciation-geographic isolation
E. None of the answers are mismatched.
Answer: E
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Indicate whether the statement is true or false
A bird in your care has an infection in its air sacs. What do you predict would be the effect of this infection?
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Match the structures with their appropriate functions:
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Not all sperm produced by the testes are functional. A sperm with a defective acrosome would
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