In the early stages the embryos of four different species will look the same .For example, fish embryos and human embryos both have gill slits. In fish they develop into gills, but in humans they disappear before birth. That what makes them different.
The wing of a bat is homologous to the flipper of a whale. Homologous structures are structures that have a similar ancestries and common traits but maybe not have the same function in an organism. For example the arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures.
Answer:
becausae they are forshadowing on something that will happen later in the book most likely but i cant tell completely unless i have the excerpt
Explanation:
Answer: A, B, and D
Explanation: I just took the test
