Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Select two options.Both of their adult forms look very similar.They both had a tail as an embryo.Their arm and leg structure is similar, but may have a different function.There are fossils of an organism that is half man, half dog in the fossil record.Both had gill slits when they were born.
Answer
A
Both of their adult forms look very similar.
B
They both had a tail as an embryo.
C
Their arm and leg structure is similar, but may have a different function.
D
There are fossils of an organism that is half man, half dog in the fossil record.
E
Both had gill slits when they were born.
Explanation
Shared features during embryonic development can support common ancestry, so the fact that both had a tail as embryos is evidence. Similar underlying limb structures that serve different functions are homologous structures, which also support common ancestry. Adult humans and dogs do not look very similar, and a half-human, half-dog fossil is not expected evidence. Gill slits are not a shared feature of human and dog newborns.
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