Fish, , reptiles, birds, and mammals have similar
embryos
They all start with gill slits. Fish and some amphibians grow to have gills. Some amphibians, reptiles, birds, and mammals develop lungs to breathe airThey all start with tails. Fish, some , reptiles, and birds grow tails. Humans do not keep their tails Fish and reptiles develop scales Amphibians, birds, and humans have skin. Birds have feathers, and humans have hair
Which two animals exhibit the most linear relationship? 1 point)
Obirds and reptiles
amphibians and reptiles
amphibians and fish
birds and humans