Question

Differentiate between chordates and non-chordates with examples.

Answer 1

1. Chordates are animals that have a notochord (rod-like, flexible structure formed during the embryonic development in some animals on the dorsal side of the animal that supports the body and serves as an internal skeleton).
2. Non-chordates are animals without a notochord.

Chordates	Non-chordates
The animals that have a notochord are called chordates. They have two pairs of limbs. Chordates are triploblastic. They are bilaterally symmetric. Examples include the phylum fishes, amphibians, reptiles and mammals etc.	The animals without a notochord are called non-chordates. They may have more than two pairs of limbs. Non-chordates can either be triploblastic, diploblastic, or neither. They can either be bilateral, radial, bi-radial, or asymmetrical. Examples include the phylum porifera and coelenterata.