As ice melts A. hydrogen bonds are broken
B. water molecules become less tightly packed
C. the water becomes less dense
D. heat is released into the atmosphere

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

What controls activities within a eukaryotic cell?