Listed below are characteristics that serve as evidence of shared ancestry between fish and reptiles. Select the option that applies only to embryos rather than adults.(1 point)

Question

Responses

hatch from and lay eggs
hatch from and lay eggs

spines and tails
spines and tails

scales as a form of skin
scales as a form of skin

gill slits that turn into gills

Answer 1

The option that applies only to embryos rather than adults is:

gill slits that turn into gills

In embryos, both fish and reptiles (specifically, all vertebrate embryos) exhibit pharyngeal gill slits, but in reptiles, these structures typically do not develop into functional gills in adults. Instead, they become other structures during development.