Lipids commonly contain fatty acids. What are the two parts of a fatty acid? Check the correct answers below. A. amino group

B. long chain of carbon and hydrogen

C. carboxyl group

D. R group

E. nucleotide

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

All organisms contribute some water to the water cycle by conducting