The heritable variation among members of a population comes about because of a)mutation b)adaptation c)competition d)the environment

What part of the plant has the most chloroplsts?

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

How does an angiosperm prevent self pollination