joleerector113
19.10.2019 •
Biology
(85 points! ) a nerve signal is like a wave. how does this work?
a: an electrical wave moves down the axon by electrons moving from the place the signal started to the place it ends up.
b: a wave of reversal of the negative electrical potential inside the cell passes along the axon with ions moving in and out of the axon.
c: a wave of movement passes down the axon, in which the whole axon moves sideways in one place and then the next.
d: the density of the cytoplasm inside the axon changes from one place to the next as the signal moves along the axon.
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Ответ:
The answer is B,trust me I took the test.GOOD LUCK
Ответ:
the importance of autotrophic organisms with respect to energy flow and nutrient cycling in ecosystems. Primary producers usel solar or chemical energy to manufacture their own food and they use this energy through cellular respiration and growth and reproduction--energy used for NPP.