Which fuel powers all of the activities of cells in all organisms on earth?
a) glucose
b) atp
c) dna
d) protein

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture

What happens to the average kinetic energy of water molecules as water freezes?

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?