The choanoflagellates are in the supergroup:

A. Opisthokonta
B. Rhizaria
C. Amoebozoa
D. Stramenopila
E. Alveolata


A. Opisthokonta

Biology & Microbiology

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The stems and leaves of plants, called the ________, provide a habitat for a wide variety of microorganisms.

A. microbivory B. rhizosphere C. phyllosphere D. plant crust

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A single common ancestor evolving into the current 28 species of silversword plants found among the Hawaiian islands is an example of

A. gradualism. B. adaptive radiation. C. extinction. D. a prezygotic barrier to evolution. E. punctuated equilibrium.

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The circulatory system of a whale is considered an organ system because it is composed of different

a. cells. b. tissues c. organs d. molecules

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Which of the following best defines what occurs during translation?

a. RNA is used to make a polypeptide. b. RNA is used to make a DNA strand. c. DNA is used to make a polypeptide. d. A polypeptide is used to make RNA.

Biology & Microbiology