Comparing vertebrate embryos quick check answers

Answer 1

1. How are the embryos of a fish and a human similar?

Both fish and human embryos have similar early developmental stages, including the formation of a notochord, neural tube, and early limb buds.

2. How are the embryos of a bird and a reptile different?

Bird embryos have a hard calcified shell, while reptile embryos have a soft leathery shell. Additionally, bird embryos develop specialized structures for flight, such as feathers, while reptile embryos do not.

3. How are the embryos of a mammal and a bird similar?

Mammal and bird embryos both develop within amniotic eggs or within the mother's body. They also undergo similar stages of development, including the formation of specialized organs and structures.