Which examples describe how a migratory bird will meet the challenge of reproducing? choose all answers that are correct. a. the bird will defend its nest and offspring from predators and competition. b. the bird will return to the same area to meet its mate each year. c. the bird will reproduce in unfamiliar territory. d. the bird will behave in ways that attract a mate or mates.

answer; ///the correct answer to the above statement is (cytoskeleton);

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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