There has been no evidence of such an ancestor.
yes they do in facts share a common ancestor.
Yes, plants and animals share a common ancestor.
An ancestor.
The common ancestor that two or more descendants share is a shared ancestor from whom they both or all descend.
Yes these two share common ancestors.
Only if you share a common ancestor. This is seldom the case. Technically, there is no relationship.
that we share a common ancestor
no, but they share a common reptile ancestor.
Descendant organisms are organisms that share many in common because they share a common ancestor.
Crocodiles and birds share a common ancestor. This can be seen by comparing the internal anatomy of the two. Dogs and Dolphins also have a common ancestor. Their skeletons again are both distinctly mammillian. The ancestor of dogs and dolphins and the ancestor of birds and crocodiles will again share a common ancestor, but you will need to go much further back. I am not sure of the timescales but we are talking tens to hundreds of million years.
It will depend on whether or not you share a common ancestor. They could also be second cousins, if you all share a Great Grandparent. If you do not share a common ancestor, there is no relationship between you.
a common ancestor is a species that multiple species share as the species they descended froma person born or that has lived before you and the word common means the same SO ....... its when you have the same descendant or person who lived before you or an ancestor that's the same