Neurotransmitters are removed from the

synaptic cleft by



a. diffusion.
b. enzymatic degradation.
c. active pumping back into the neuron.
d. all of these.
e. b and c only


D

Biology & Microbiology

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What is the duct within the kidney that collects urine?

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To conduct a phylogenetic analysis, we need an outgroup to:

A. decide which characters are analogous and which are homologous. B. determine which character states are ancestral and which are derived. C. determine which characteristics to include in our analysis. D. decide which molecular data to use. E. All of the answer options are correct.

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Which type of plant hormone has been shown to both promote pollen tube elongation and inhibit root

elongation?

a. jasmonates b. ethylene c. brassinosteroids d. salicylic acid e. oligosaccharins

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Which is not true of placoderms?

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