Which of these is an example of structural protein in plants

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

Give examples of selective advantage of organism’s body part/organ

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?