The answer is B. Hairs have different lengths due to variations in the activity of their respective hair follicles. Hair has growth and resting phases. The hairs on the head have longer growth phases compared to those of the eyebrows. Therefore, they grow longer before they start falling out in the resting phase. Those of the eyebrows get to the resting phase quicker hence are shorter
Kinda looks like a normal rock but with something on the bottom.
Microtubules play a role in the migration of chromosomes to opposite ends of a mitosing cell during the anaphase.
A, because plant cells do have membrane-bound nuclei. they have chloroplasts, so that isn't it. Plants don't use oxygen for photosynthesis, but carbon dioxide. The plant walls are made up of cellulose,, not lipids. It must be A.
A protostar forms once the nebular cloud condenses and the core begins nuclear fusion. When you say nuclear fusions it refers to the action that the power or the energy starts to combine with strong energy reaction that makes the power nuclear to react and create fusion.