How do you describe a food chain to someone who never thought of it before

a system where a small animal is the food for a larger animal which, in turn, is the food for an even larger animal. an example of food chain is a fly being eaten by a frog and then the frog is eaten by a larger animal.

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;