The characteristic that applies only to embryos rather than adults is:
gill slits that turn into gills
Responses
hatch from and lay eggs
hatch from and lay eggs
scales as a form of skin
scales as a form of skin
spines and tails
spines and tails
gill slits that turn into gills
1 answer
The characteristic that applies only to embryos rather than adults is:
gill slits that turn into gills