Answer: The role of an organism in the ecosystem is called its NICHE.
Explanation: The niche (pronounced 'neesh') of an organism is the specific function and purpose of the organism within its environment, ecosystem or food-web or food-chain.
The answer is "because water is produced as a by-product"...the word dehydration should also be a major clue because that means water loss.
The geological time scale (gts) is a system of chronological measurements that relates stratigraphy to time and is used by geologist, paleontologists, and other earth scientists to describe the timing and relationships between events that have occurred throughout earth's history
( stratigraphy is the branch of geology concerned with the order and relative position of strata * a series of layers of rock in the ground * and there relation ship to the geological time scale)
hope that helps :)
