As a group, living things must be able to do all of the following except
a. remain without change over time.
b. obtain and use energy.
c. grow and develop.
d. respond to their environment.

How do antiviral drugs work? in your own words.

Identify the missing parts of the carbon cycle

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3