1.how do earthworms return nutrients to the ecosystem? 2. example of a food chain including an earthworm.

Answer 1- Earthworms are decomposers. They decompose the organic matter and convert the complex substances into simpler digested molecules. These molecules are released into the soil by the feces of earthworms. This way earthworms replenish the soil fertility and return the nutrients back to the ecosystem.

Answer 2- Food chain is a series in which organisms are placed in a systematic order of flow of energy and nutrients. An example of food chain with earthworm is shown in image shared below.

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.