Undifferentiated human cells are called .

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

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?