During metaphase sister chromatids come to the middle of the cell true or false

What is turgor pressure, what causes it, and what does it do for a plant?

The science for classifying and naming organisms is known as

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?