The productivity of a freshwater ecosystem depends on water movement. In which of the following freshwater ecosystems does water flow slowly and
usually in more than one direction?
A. Stream
B. Marsh
C. Bog
D. Slough
helppp please

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 examples in which sam interacts only with natural resources

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.