Question

The diagram shows the embryological development of a fish, salamander, turtle, and chick. The top of the diagram shows the early embryos of each organism. The bottom of the diagram shows the embryos later in development. What similarities exist between the early embryos of all four organisms? What do these similarities indicate about the organisms?

Answer 1

Answer:

it's the similarity in their structure in early stages and it those similarities gradually decrease as the embryos develop. this indicates the common origin of these animals

Answer 2

The embryological development of a fish, salamander, turtle, and chicken

Explanation:

• The embryos have similar basic shape, round spots for eyes and under stomach, small irregularity on the bottom or lower side, notch for ear and similar kind of tail.
• Fish, salamander, turtle, and chicken, all belongs to the Subphylum Vertebrata.
• This is picture shows the examination of vertebrate embryos which evidently depicts that during different stages of early development the vertebrates have corresponding characters and all the embryos looks quite similar.
• For example is having tail in all early vertebrate embryos which is persistent in some animals whereas in some animals is shows regression with the later stages of development for example, humans.
• All vertebrate embryos develops by passing through similar stages in which they possess premature gill.
• In fishes these pouches develops into gill apparatus and in other vertebrates who don't have gills, these premature gill goes through refinement and develop into structures which are associated with the head and neck.
• Therefore, it can be concluded that these animals have diverged from same ancestors. The individual development of an organism occurs through several different stages that gives an idea of a broad picture of the evolutionary stages that is phylogenetic relationship among species which belongs to different classes.