Which idea is central to the biological species concept?
A. Vicariance
B. Sexual selection
C. divergent phenotypes
D. reproductive isolation
E. distinct lineages
Ans: D. reproductive isolation
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The common fungus Polyporus squamous forms large shelf-like structures that project from the lower portion of dead trees.
Answer the following statement true (T) or false (F)
All the following factors affect the attenuation of light in water, except
A) phytoplankton. B) water itself. C) intensity of light. D) dissolved substances.
Why does the transcriptome differ within an organism's cell types?
What will be an ideal response?
All of the following features are true of primates except
A. they belong to the order containing lemurs, monkeys, and apes. B. they have binocular vision. C. they have prehensile tails. D. they are mammals with grasping fingers and toes.