Through what body part do Chloe and Nurb enter to begin their respiratory system journey?

Modern whales developed their traits through natural selection what occurs during the process of natural selection

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?