Imagine you just dipped your food into a swimming pool. You expected the pool to be warm, but it was ice cold! Which of your body systems help you gather and synthesize information to react to this situation?

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?