(D), amount of time and area of physical contact between the substances
Answer:
losing weight after childbirth
Explanation:
No. In biology, coevolution occurs when changes in at least two species' genetic compositions reciprocally affect each other’s evolution.
Answer:
C. 1.23 g/ml
Explanation:

Mass of rock = 80g
Volume of rock = final fluid volume - initial fluid volume
Volume of rock = 265 cm³ - 200 cm³ = 65 cm³


1 cm³ = 1 ml
Therefore, density of the object = 1.23 g/ml
Answer: D
Explanation:
The nucleus is the organelle that houses DNA
A describes the smooth ER. B is a protein. C is the mitochondria.