Question

at least 5 points of difference between agnatha and gnathostomata

Answer 1

AGNATHA :

》It includes the most primitive craniates.

》They have mouth without jaws.

》Notochord persists throughout their life.

》Exoskeleton and appendages are absent in them.

》Single nostril is found in them.

》Cold-blooded.

GNATHOSTOMATA -

》Advanced vertebrates are included here.

》Mouth bears jaws.

》Notochord is seen in embryonic stage but is replaces by vertebral column in adult.

》Paired fins or limbs can be seen here.

》Both cold and warm blooded.

Answer 2

Answer:

Thanks for the 5 points

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