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Dolphins and porpoises are both cetaceans and are similar in behavior and overall appearance.
yall are stupid. go to school
While there is no one common ancestry, many of them have Irish ancestry.
The strong evidence for the common ancestry of all vertebrates is THE SIMILARITY OF THEIR EMBRYOLOGICAL STAGES.
your nana
It simply highly suggests that all organisms going through this developmental phase have common ancestry, thus are related on the tree of life.
That different organisms are able to adapt to the same environment.
Homologous structures are similar in structure but different in function, indicating shared ancestry (such as the bones in the limbs of humans and bats). Analogous structures have similar functions but different origins, suggesting convergent evolution (like the wings of birds and insects).
Starts with b
Yes.
share a common ancestry
Some will have common ancestry.