Embryology

Unborn or unhatched offspring are called embryos. The study of these embryos is known as embryology. By studying the development of different types of organisms, scientists can compare and contrast their growth at different stages of development.

The diagram shows the different stages of embryo development in five organisms.

The diagram shows five stages of embryo development in five different organisms: fish, tortoise, chicken, rabbit, and human. The first stage shows the eggs of all the organisms. The second stage shows all the embryos developing a head and a curved tail. The third stage shows all the embryos beginning to develop limbs and curling up, except for the fish, which becomes long and straight. The fourth stage shows all embryos developing facial features and starting to differ from each other in appearance. The fifth stage shows what the embryos will look like once they are born or hatched.

Multiple Choice Question
Which statement is supported by the data in the diagram?

A.
Organisms are identifiable in the early stages of development.

B.
Diverse species all develop in the same amount of time.

C.
Diverse species reproduce in the same manner.

D.
Diverse species are related through a common ancestor.

1 answer

The correct answer is:

D. Diverse species are related through a common ancestor.

This choice is supported by the data in the diagram, which shows that the embryos of different organisms exhibit similarities in the early stages of development. These common features suggest a shared evolutionary heritage or common ancestry among the diverse species.