Some mutations always occur from generation to generation. but most mutations do not persist over time in the gene pool. which mutation is most likely to become established and persist in a species? a) a mutation that changes the color of a fruit fly’s eyes b) a mutation that makes it harder for a frog to catch food c) a mutation that a rabbit conceal itself from predators eliminate d) a mutation that causes a leopard attack humans more frequently

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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what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.