A five-carbon sugar, ___, a key element in RNA. A ___ group. A ___ base. Adenine. ___. Guanine. ___.

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

What is a dendrite and what does it do?