Question

11.7. relate similarities in embryonic development among species to their shared evolutionary past. the embryos below represent animals that all share a common ancestor, as evidenced by their shared embryonic traits. select the embryo that will retain these shared traits in its adult form. gill slits tail fish reptile bird human

Explanation:

Fish retain gill - slits and tail as adults. Reptiles, birds, and humans lose these embryonic traits.

Answer:

Fish