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 pattern can be seen in the diagram?
A.
Each embryo goes through very different stages of development.
B.
Mammals look very similar to each other during limb development.
C.
Birds and reptiles have very different appearances throughout development.
D.
Aquatic organisms and land organisms do not share any stages of development.
1 answer
The correct answer is B. Mammals look very similar to each other during limb development.
In the diagram, it appears that the embryos of mammals (like the rabbit and human) show similarities during the limb development stage, whereas the other organisms (fish, tortoise, and chicken) have distinct patterns. Therefore, option B accurately reflects a pattern observed in the stages of development represented in the diagram.
