The great lakes region is a major source of fresh water and home to a diverse group of plants and animals. which of these factors could disturb the stability of the ecosystem? a) a decrease in fishing throughout the great lakes region. b) a slowdown of clear cutting and construction in the area. c) normal snowfall in winter, ensuring that water levels remain normal. d) the disappearance of a keystone species due to an increase in water temperature.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

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

Tides that occur during the new and full moons