Complete the statements about meiosis. The process of meiosis occurs during the ___ and results in
To maintain the correct number of chromosomes in
offspring, male and female gametes contain___ of chromosomes as somatic cells. During fertilization, gametes fuse to form a ___
called a zygote
cell

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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the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.