Which of the following are NOT important in chemical synapses?
A. gap junctions
B. neurotransmitters
C. specific neurotransmitter receptors
D. secretory vesicles
E. voltage-gated Ca2+ channels
A. gap junctions
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Discuss how protists can be distinguished from each of the following: viruses, bacteria, fungi, plants, and animals.
What will be an ideal response?
The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is called
A. catastrophism. B. temporal equilibrium. C. gradualism. D. punctuated equilibrium. E. temporal isolation.
Compound leaves are defined as being divided into
A. blades. B. companion cells. C. leaflets. D. stomata. E. lateral meristems.
Some doctors prescribe synthetic thyroxine for weight loss even when circulating levels are normal. Will this work? What side effects are possible?
What will be an ideal response?