I hope what they said helps!
Answer: The sodium-potassium pump.Explanation:
The concentration of sodium and potassium inside and outside the muscle cells are important in the regulation of contraction. These concentrations differ when a muscle is relaxing or contracting.
<span><span>Contraction: potassium concentrations are higher outside the cell than inside the cell.</span><span>Relaxation: the potassium concentrations are higher inside the cell than outside the cell.</span></span>
hope this helps :)
Answer:
A flower has more pollen grains than it does ovules so that the pollen has a better chance of getting to the ovules so they can make seeds so more plants will grow.
Explanation:
I think what you were trying to ask was Why does a flower have more pollen grains than it does ovules?