Question

why do a chicken embryo and a cow embryo look very similar even though the adults do not? they are not related, but still have similar development. they are distantly related, so their development is similar. the embryos mutate in utero to form different structures. the genetic makeup of the two species changes during development.

Explanation:

Chicken and cow are distantly - related as they are both vertebrates. Vertebrates share a common ancestor, which leads to similar embryonic development patterns. As development progresses, differences become more pronounced due to evolutionary divergence.

Answer:

They are distantly related, so their development is similar.