Mammals are characterized by
a. warm-bloodedness and feathers.
b. hair and feathers.
c. mammary glands and hair.
d. hair and shelled eggs.

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

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

What controls activities within a eukaryotic cell?