What part of a cell regulates the movement of materials in and out of the cell

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)