I believe the answer is D, Cells get energy by taking in nutrients from food. Correct me if I'm wrong.
b. trees provide everything in a rain forest ecosystem.
The external crystal form of a mineral Rounded: Any clast with smooth edges. Usually indicates abrasion by moving water or wind. Also the answer to this question is in magmas/ lavas many mineral grains are growing simultaneously. These grains grow into one another and form an interlocking texture.
I'm a carbohydrate and I'm useful for a fast source of energy.
Scientists first discovered cells through the microscope
