The nucleus is a round, double-walled structure often found in the center of both plant and animal cells. What is the function of the nucleus? giving brain liest to who ever helps thanks. PLEAse dont play or i will report you:)

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?