What are alleles? genes for different traits, such as hair color and eye color B. recessive forms of a kind of characteristic carried by genes C. alternative forms of a gene for a single trait, such as blue eyes or brown eyes D. dominant forms of a kind of characteristic carried by genes E. the locations of genes on a chromosome

C

Explanation:

for any gene, a person may have the same two alleles, known as homozygous or two different ones, known as heterozygous

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: