A) body divided into head, trunk and tail
B) two pairs of limbs
C) exoskeleton
D) the presence of skull
Correct Answer: D
Solution :
All vertebrates without any exception have skull which protects the brain. Well-developed internal skeleton of cartilage and bone, separated into axial skeleton (skull vertebral, ribs, sterum) and appendicular skeleton (girdles and appendage)You need to login to perform this action.
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