Choose correct options from statements below about the enzyme nitrogenase

I. can be found in most bacteria and a few invertebrate animals.
II. contains unique redox centers that contain both Fe and Mo.
III. changes in conformation as a result of ATP hydrolysis.
IV. carries out a reaction that reduces nitrogen to NO.

(a) I, II, III, IV
(b) II, III, IV
(c) II, III
(d) III, IV
(e) IV only

Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance

What class of levers is shown in this image?

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.