State one characteristic which enables scientists to determine whether two organisms belong to the same species.

answer; (phospholipid);

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:

the answer would be..

b. sucking