How do animals have difficulty getting energy.
a. they cannot reproduce
b. there is little sunlight.
c. there is a limited supply of food.
d. there is a large supply of food.

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o