Which of the following is an example of a surface that has very little friction

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

Achange in which factor will affect the rate of reaction only when gases are involved? temperature pressure surface area concentration

Why does controlling transcription affect prokaryotic gene expression?