Which process is responsible for causing menstruation? a. breakdown of the corpus luteum b. fertilization of the egg c. implantation of the egg in the endometrium d rupture of a follicle in the ovary e. repair of the endometrial lining

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