Biology, asked by sanjanasinhaa12345, 8 months ago

the first vertebrates to apper on earth were
a) ostracoderms
b) cyclostomes
c) placoderms
d) condrichthyes​

Answers

Answered by pubgqueen
3

Answer:

placoderms i guess not syre

Answered by potrriselvan45
1

Answer:

option c is the correct answer

Explanation:

Placoderms are paraphyletic, and consist of several distinct outgroups or sister taxa to all living jawed vertebrates, which originated among their ranks. ... The jaws in other placoderms were simplified and consisted of a single bone.

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