You are part of a research team at a pharmaceutical company that is looking for hormones that regulate appetite and could be used to regulate body weight. You suspect that you have found a new hypothalamic hormone that regulates appetite. How could you prove that it acts to regulate appetite

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?