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life science pretest

1. The facts, figures, charts, graphs, and other evidence gained through observaton.
2. The part of a scientific investigation that is used for comparison is the?
3. Which concept is the best illustrated by this diagram?
4. The variable that changes in response to a change made by the scientist is the?
5. DNA is essential to living organisms because it?
6. What is the mass of this object? Round answer to the nearest tenth.
7. The variable that a scientist changes on purpose during a controlled experiment is called the?
8. The presence of permafrost is a characteristic of which major biome?
10. In a food chain, the numbers of each type of population are usually in a relatively stable combination. A diagram of a food chain is shown here. If humans interfered by spaying an insecticide to kill the insects,what would happen?
Created by: spongy bob