Within a single motor neuron, what direction does an impulse follow?
A. Dendrite ? axon ? cell body
B. Axon ? dendrite ? cell body
C. Dendrite ? cell body ? axon
D. Cell body ? dendrite ? axon
E. Cell body ? axon ? dendrite
Answer: C
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Aerobic respiration, anaerobic respiration, and fermentation are the three basic types of
A. chemoorganoautotrophic metabolism. B. photolithoautotrophic metabolism. C. chemolithoautotrophic metabolism. D. chemoorganoheterotrophic metabolism.
Are bat wings and bird wings homologous or homoplastic structures?
_____ As examples of vertebrate forelimbs, they are homologous, but as wings they are homoplastic. _____ As examples of vertebrate forelimbs, they are homoplastic, but as wings they are homologous. _____ As vertebrate forelimbs and as wings, they are homologous. _____ As vertebrate forelimbs and as wings, they are homoplastic. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about homology? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
____________________ T cells secrete interleukins that activate other cells in both the cell-mediated and antibody-mediated immune responses
Fill in the blank(s) with correct word
Extinction rates on islands are predicted, based on island biogeography, to be lowest
A. on small islands. B. on large islands. C. near islands. D. far islands.