Question

The similarities of the bones labeled A provide

evidence that
1) the organisms may have evolved from a common
ancestor
2)all species have one kind of bone structure
3) the cells of the bones contain the same type of
mutations
4)all structural characteristics are the same in
animals

Answer 1

The similarity in the bones labeled A gives the evidence that:

1) The organism may have evolved from a common ancestor.

The organs with the same fundamental structure but different functions are called homologous organs. Such organs are a result of evolution into different species from a common ancestor.