Compared with a smaller cell, a larger cell of the same shape has .

a. less surface area per unit of volume
b. a smaller average distance between its mitochondria and the external source of oxygen
c. a smaller cytoplasm-to-nucleus ratio
d. less surface area

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