Just answer this 3 question please part 1

How many chromosomes are in a gold fish?

What substance acts to prevent sudden ph changes in bodily fluids?

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.