Question

Characteristic of gnathostomata-pisces

Answer 1

Includes advanced vertebrates..
Mouth has jaws
Embryonic notochord is usually replaced in adult by vertebral column
Paired fins or limbs are present
Have paired nostrils
Include both cold and warm blooded
Divide into pieces and tetrapoda

Answer 2

General Characters of Gnathostomata:

1. Two well formed jaws encircle the mouth aperture in all members of this group.

2. Paired and in some cases jointed appendages are present in Gnathostomata.

3. Calcified, bony skull and vertebra are characteristic features of Gnathostomata.

4. All fishes, amphibians, reptiles, birds and mammals are members of this group.

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