Question

3. Skates are
fishes.
4. The larvae of an
amphibian
5.
6.
are jawless vertebrates.
is the unique characterist
feature of mammal.
7. Spiny anteater is an example​

Answer 1

Explanation:

Chondrichthyes have paired fins and a skeleton made of cartilage. This clade arose approximately 370 million years ago in the middle Devonian. They are thought to have descended from an extinct group that had a skeleton made of bone; thus, the cartilaginous skeleton of Chondrichthyes is a later development.