Living things use what for oxidation of carbohydrates, proteins, and fats.
O oxygen
O carbon
O hydrogen
O nitrogen

What does homeostasis means in biology?

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?