3. Explain the role of enzymes and how they affect the chemical reactions of living things.

The model illustrates a process by which a substance is taken up by a cell

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !