Question 2 (2 points)
Nitrogen is important for creating __
nucleic acids such as ___

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Which process of living things produces water that enters the water cycle

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?