In eukaryotes, the size of the primary transcript is generally the gene in the template dna strand.
a. the same length
b. as shorter than
c. twice
d. as long as
e. longer than

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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b brown mice / white sand dunes

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.