Have this done correctly for brainiest

1. Dependent Variable

2. Constant

3. Data

4. Most factors are held constant because you can only change one factor in an expirement so if you notice someting you'll know what caused it.

5. In scientific reasoning, a hypothesis is an assumption made before research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data. Both are ways of thinking about the expirement or situation though. Although, one comes before and one comes after the expirement has finished.

6. Science- The intellectual activity encompassing the systematic study of the structure and behavior of the physical and natural world through obseration and experiment. (This is more of an advanced definition, and knowing most teachers. She may or may not want the definition from your actual book.)

Explanation:

answer; i believe the correct answer is ( proteins );

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.