Question
Environmental Studies Question on Basics of Environment
The first Jawed vertibrates (Placoderms), arose in which period?
A
Cambrian
B
Ordovician
C
Devonian
D
Silurian
Answer
Devonian
Explanation
Solution
The correct option is (C):Devonian
The first Jawed vertibrates (Placoderms), arose in which period?
Cambrian
Ordovician
Devonian
Silurian
Devonian
The correct option is (C):Devonian