Which of the following is true for Brachyura marine crabs?
A) Species richness decreases with increasing sea surface temperatures.
B) Species richness decreases with NPP.
C) Species richness decreases with latitude.
D) Species richness decreases with time.
C
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Barnacles live on the bodies of whales and other aquatic organisms. They do not hurt their host but gain the benefit of a habitat and food supply from the host. This relationship is called
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