The clumped distribution of coral colonies is due to ____.
A. asexual reproduction
B. patchy distribution of resources
C. availability of sunlight
D. competition for limited resources
E. uniformly available resources
Answer: A
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When an action potential reaches the axon terminal, the ____ channels are activated to trigger synaptic vesicle release
a. voltage-gated Cl- channels b. voltage-gated Ca2+ channels c. voltage-gated Na+ channels d. ligand-gated Cl- channels e. ligand-gated Ca2+ channels
Four of the five answers listed below are lipids. Select the exception
a. triglyceride b. wax c. phospholipid d. amino acid e. steroid
The chemical reactions in cells are called ____
a. substrate b. coenzymes c. receptor sites d. metabolism e. active site
Studies of snapping shrimp on either side of the Isthmus of Panama have shown that each Caribbean shrimp species is more closely related to a Pacific shrimp species than it is to any other Caribbean shrimp species. The most likely explanation for this result is that
A. snapping shrimp species in each ocean diverged after the formation of the Isthmus of Panama. B. snapping shrimp species in each ocean diverged prior to the formation of the Isthmus of Panama. C. creation of the Panama Canal allowed interbreeding between populations of shrimp. D. snapping shrimp in the Caribbean and the Pacific were never part of the same population.