Which is the most accurate description of an ecosystem?
a.) an ecosystem consists of a biological community—the physical and chemical factors—that make up its abiotic environment.
b.) an ecosystem consists of the biological community that occurs in some locale. c.) an ecosystem consists of the biological community that occurs in some locale and the chemical factors that make up its biotic or abiotic environment.

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous