The process by which organisms that are better adapted to the environment survive and reproduce is 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

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

As an asteroid comes close to earth, it's name will change to? apex