A 70 year old female is seen in the emergency department and diagnosed with acute cholecystitis. She is being brought to the operating room for a laparoscopic cholecystectomy. What would be the most appropriate antimicrobial prophylaxis to prevent surgical site infection?

the correct answer is:

a population changes in response to a change in the environment.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

answer; both surfaces of the membrane are nonpermeable