As an impulse travels down an axon,

a chemical signal is released

a charge reversal occurs

electrons are transported

the signal stops

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Which of the following is not a defining characteristic of plants?

Which must be kept in mind when determining if an explanation is correct? check all that apply.which must be kept in mind when determining if an explanation is correct? check all that apply.