What level of organization is all the populations of animals, plants, fungi and bacteria in Yosemite

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

Which best describes carbon dioxide’s path out of the body

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.