The 8,000 species in this group have countless rows of cilia.

A. cellular slime molds
B. water molds
C. plasmodial slime molds
D. ciliates


Answer: D

Biology & Microbiology

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Which of the following describes the exchange of gases between a respiratory surface and the

circulatory system?

a. ventilation b. cellular respiration c. perfusion d. bulk flow e. physiological respiration

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Which of the following processes is closely

associated with the normal functioning of the “cystic fibrosis” gene?

a. water osmosis b. sodium - chloride pumping c. protein diffusion d. pH regulation e. polypeptide packaging

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The genetic code is comma-free, nonoverlapping, and almost universal

Indicate whether the statement is true or false

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Which of the following is characteristic of sponges and hydras?

a. lack of an actual circulatory system b. lack of a reproductive system c. lack of a digestive system d. lack of a muscle system

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