Question
Which evidence supports the theory that fish and mammals evolved from the same ancestor?
a. their embryos share features in the late stages of development.
b. their embryos share features in the early stages of development.
c. they both produce egg and sperm cells that must join in fertilization.
d. they both emerge from fertilized eggs.
a. their embryos share features in the late stages of development.
b. their embryos share features in the early stages of development.
c. they both produce egg and sperm cells that must join in fertilization.
d. they both emerge from fertilized eggs.
Answers
GPT-4o mini
The evidence that supports the theory that fish and mammals evolved from the same ancestor is:
**b. their embryos share features in the early stages of development.**
This is because early developmental stages of many vertebrates, including fish and mammals, show significant similarities, which suggests a common ancestor. These similarities include the presence of pharyngeal slits, a post-anal tail, and other structural features that are indicative of a shared evolutionary lineage.
**b. their embryos share features in the early stages of development.**
This is because early developmental stages of many vertebrates, including fish and mammals, show significant similarities, which suggests a common ancestor. These similarities include the presence of pharyngeal slits, a post-anal tail, and other structural features that are indicative of a shared evolutionary lineage.