Answer:
(Physiology) a period during which a nerve or muscle is incapable of responding to stim.ulation, immediately following a previous stim.ulation
A period is a release of blood from a girl's u.terus, out through her v.a.g.in.a. It is a sign that she is getting close to the end of p.ub.erty
period in Biology topic. a particular length of time with a beginning and an end
Explanation:
was not sure which one u wanted so pick the one that suits u the best
