What is a simple way for determining if an annelid is a polychaete or a clitellate?
A. The number of segments
B. The amount of chaetae (setae)
C. Possession of a closed circulatory system
D. The layout of the digestive system
Answer: B
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Green sulfur bacteria are nonmotile but can control their depth by using gas vesicles to control buoyancy.
Answer the following statement true (T) or false (F)
Which compound has the highest free energy and produces the most ATP per molecule when oxidized?
A. acetyl CoA B. pyruvate C. carbon D. lactate E. glucose
Ocean acidification is being caused by
a. global warming. b. nitrogen fertilizer runoff. c. phosphorous fertilizer runoff. d. transfer of carbon dioxide from atmosphere to ocean. e. transfer of carbon dioxide from ocean to atmosphere.
The purpose of irradiating foods is to ____
a. increase the vitamin content b. increase the mineral content c. destroy harmful bacteria, fungi and other microorganisms d. limit spoilage e. both destroy harmful bacteria, fungi, and other microorganisms and limit spoilage