What is actually dividing during cytokinesis?

Is this statement True or False? Energy from the sun that enters the Earth system does not leave.

Charles darwin viewed the fossil record as A) evidence that earth was a thousand years old - I know it isn't this one B) Useful support for his theory - I'm leaning towards this one C) interesting but unrelated to the evolution of modern species D)

Does anyone know anything about the animal cell

How long do human red blood cells circulate in the blood before they wear out and have to be replaced?

A carbon atom contains 6 protons, 6 neutrons, and 6 electrons?

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Unlike fossil fuels, biomass fuels

Which of these products is formed during the metabolic reactions of cellular respiration

8. Agent that kills microorganisms, rather than inhibits it:

What nutrients are required in higher amounts during pregnancy due to their roles in the synthesis of red blood cells?