The part of the experiment that is established to determine what happens under normal conditions.

Talking listening and reacting non verbally are all part of communicating

In the practice of science, this type of reasoning is used to develop explanations.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?