How does inefficient transfer of energy among trophic levels result in the typically high endangerment status of many top-level predators? select one: a. predators are more disease-prone than animals at lower trophic levels. b. top-level predators are constrained to have small populations that are sparsely distributed. c. predators have relatively large population sizes. d. predators have short life spans and short reproductive periods?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

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