Question

6/10
what does the similarity in dna across species suggest?
dna is not a reliable source of evidence. species have evolved independently.
there is a common ancestry among species.

Explanation:

DNA similarity across species is a key concept in evolutionary biology. It indicates that species share a common ancestor. Over time, genetic changes occur, but the underlying similarity remains. This is a fundamental principle in understanding the evolutionary relationships among organisms.

Answer:

There is a common ancestry among species.