Question

Which has been observed in the study of embryology?

A.Species whose embryos have similar traits rarely have a common ancestor.
B.Species whose embryos have similar traits always have similar body forms as adults.
C.All traits present in early embryos remain throughout development.
D.Some traits in certain embryos disappear as the embryo develops.

Answer 1

D. Some traits in certain embryos disappear as the embryo develops.

Step-by-step explanation:

Embryology is the study of embryos. Embryos of different animals such as mammals, birds, fish, reptiles etc. look alike that is they are very similar. Many traits of one type of animal appear in the embryo of another type of animal.

Answer 2

D. Some traits in certain embryos disappear as the embryo develops

Step-by-step explanation:

I don't know how I would explain it, but I can list some of the things that disappear such as... Gill slits, and tails. Hope this helped :D