En una especie de plantas las flores pueden ser de color rojo, blanco o rosa. Se sabe que este carácter está determinado por dos genes alelos, rojo (Cr) y
blanco (Cb), con herencia intermedia.

¿Cómo podrán ser los descendientes del cruce entre plantas de flores rosas?

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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climate change and pollution

the answer would be knowledge about cars!