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DiKsa [7]
3 years ago
5

What is the most primitive group of fishes and what is the defining characteristics of animals in this group?

Biology
1 answer:
nasty-shy [4]3 years ago
6 0

Answer:

Superclass Agnatha.

The fishes in this group don't have  jaws. Their mouths are like a holes in their heads and lack of movements.

Explanation:

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