What is a cell?

(don't mind this. I needed the question to be longer)

How can you keep track of variables in a science experiment?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

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