In a population of lizards, in a 6-month period, 150 lizards emigrate from the
population. In the same 6-month period, 140
lizards immigrate to the population. How
did the population change during the 6-month
period? (Assume all other factors did
not change.)
A. The population decreased by 10 lizards.
B. The population increased by 140 lizards.
C. The population increased by 150 lizards
D. The population decreased by 290 lizards

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 eggs of the insects should be the first thing collected at the scene.

false

the electromagnetic energy from the sun arrives in the form of visible and invisible light.