Which of the following is the oldest synapomorphy found in a

Which of the following is the oldest synapomorphy found in all animals?

A. Amniotic egg

B. Notochord

C. Bilateral symmetry

D. Eukaryotic cells

Which of these is the youngest synapomorphy found in vertebrates?

Solution

The oldest synapomorphy found in all animals- is eukaryotic cells which is found in ameoba and were found in the earlier animals.

The youngest synapomorphy found in vertebrates-Notochord as The spinal cord is accompanied by a notochord .This is usually made up of cartilage,which is usually a given semi-rigid connective tissue