Answer:
The correct answer for: do perch and chimps share a common ancestor? Is yes and its name is: choanoflagellates
Step-by-step explanation:
To understand the answer we need to analyze its context. First of all, this is only theory and yes, it is believe that choanoflagellates are the closest unicellular ancestors to animals. If this is correct yes all animals on earth share the same ancestor and are those guys. However, if we turn into the primate mammal family species and the pikaia fmily species share direct ancestors the answer is no. But as animals, we do share an ancient ancestor. So yes, they share one ancestor. Even though it's a pretty old one.