Genetic and environmental factors affect which traits are passed on from parent to offspring over generations and how they are passed on. Favorable traits for a given environment are passed on from parent to offspring. Unfavorable traits are selected against and inherited less frequently over time because they do not promote survival and reproduction.

you can get banned on this website if you post your quizzes here. . . .

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

the answer is c. altitude. hope this ! #brainiac