A is the correct answer you are looking for
PP and pp, there are homozygous because there are the same letter
Sunflowers maintain homeostasis by using water. It's what they use to grow I guess.
Answer:
because cell volume increases much quickly in relation to the surface area.
Explanation:
<em>The size of prokaryotic cells is limited because the volume of organisms/cells increases much quickly in comparison to the surface area. The larger the cell, the more difficult it is for required materials to be distributed within it and the smaller the cell, the easier it is for materials to be distributed round the cell.</em>