Two species of birds that are kept from interbreeding by the differences in their mating songs are experiencing ________ isolation

Fill in the blank(s) with correct word


behavioral

Biology & Microbiology

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Which of the following hormones would be most useful in promoting the rooting of plant cuttings?

A) strigolactones B) abscisic acid C) cytokinins D) gibberellins E) indoleacetic acid

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The 3 types of horizontal gene flow that occur in

bacteria are __________, __________, and __________. Fill in the blank(s) with the appropriate word(s).

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A buildup of H+ in the blood will lead to ____

a. alkalosis b. acidosis c. excess calcium d. excess carbon dioxide e. a higher than normal pH

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Meselson and Stahl proved that

A. DNA contains nitrogen. B. DNA replicates in a semi-conservative manner. C. DNA is made from nucleotides. D. DNA is the genetic material.

Biology & Microbiology