Explain the process of radiometric (radioactive dating) in your own words.

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

Aplant may open end close its stomata to prevent excess water loss and maintain

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above