What type of evolutionary adaptations did plants acquire to allow them to grow in areas that were not directly on a water source? A. Vascular seedless plants evolved specific structures to transport and hold fluids, reducing dependence on water sources.
B. Gymnosperms evolved seeds, which they could alter to need less water.
C. Non vascular plants evolved chloroplasts to allow them to get energy from the sun, instead of relying on water for energy.
D. Angiosperms evolved flowers, which could catch rainwater, reducing the dependence on ground water sources.

A

Explanation:

because in a very aquatic environment there is no need for specialised transport systems like in moss which doesn't have vascular bundles but if they are to survive in relatively dry areas then they must develop these systems to transport and store water

A. Vascular seedless plants evolved specific structures to transport and hold fluids, reducing dependence on water sources.

Explanation:

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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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is in the form atp or adenosine triphosphate