What is the hierarchy of life on earth which ranges from cells to ecosystems? Explain the main characteristics of each level, and what is combined to create the next higher level.

What are some characteristics of a free enterprise economy?

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

Amoeba sisters video recap pedigrees