28. Which of the following statement regarding neurotransmitter is correct?
(1) A neurotransmitter can be re-uptaken back to the presynaptic neuron.
(2) Gamma aminobutyric acid (GABA) is the principal inhibitory neurotransmitter in the brain.
(3) The role of a neurotransmitter agonist is to mimic or enhance the effects of specific neurotransmitters.
(A) (1) and (2)
(B) (1) and (3)
(C) (2) and (3)
(D) all of the above
(E) none of the above
【已刪除】19. Body size is a functional trait ecologists and evolutionary biologists often examine, (A) Please explain the importance of
body size for individual performance, species interactions, and ecosystem functions. (B) Predict how species body size
across altitude in Taiwan will respond to climate warming based on ecological concepts.