Cloning
can only be done with simple cells like bacteria
creates offspring with a combination of traits from two organisms
results in offspring that is genetically identical to its surrogate mother
removes the nucleus from an egg cell and replaces it with the nucleus from another organism

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: