Why is it necessary for meiosis to produce cells with fewer chromosomes? A. If it did not, the chromosome number would double in each
generation.
B. It saves energy for the organism to produce fewer chromosomes.
C. Organisms reproduce sexually by joining two tetrads together.
D. Asexual reproduction requires fewer chromosomes than sexual
reproduction:

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:

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.