Question

which of the following describes how dna provides evidence to support that life changes over time?
a. some animals exhibit similar structures, possibly due to a common ancestor.
b,. some animals exhibit similar stages of embryonic development.
c. some animals exhibit structures that are no longer used for any purpose.
d. some animals exhibit similar biological proteins.

Answer 1

a. some animals exhibit similar structures, possibly due to a common ancestor. (because just like humans, we where once like cavemen and just like ants back in the dinosaur time period where as big as lizards)

Answer 2

Answer: Option D

Explanation:

The replication of DNA produces a specific type of protein and the protein are functional protein. Specific proteins serve special function.

Pressence of same type of protein in the organism shows that there is a relation between the two organisms having same type of protein.

Both the organisms have same recent common ancestor and that why they have similar biological proteins.