Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

i think the answer would be a dominant trait.

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