25. Mutualism is one type of interaction between species. Which statement best
describes mutualism between two
species?
A Both species are härmed by the
relationship
B One species benefits while the other
species is harmed
C One species benefits while the other
is not affected.
D Both species benefit from the
relationship

the answer is D bot species benefit from the relationship

Explanation:

hoped that helped

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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