NEET BIOLOGY

Detailed explanation-1: -Vertebrates possess a backbone and an internal skeleton. Vertebrates do not possess an exoskeleton.

Detailed explanation-2: -Vertebrates are animals that have backbones and an endoskeleton (skeleton inside their bodies). In contrast, invertebrates are animals that do not have backbones. Invertebrates can have a skeleton outside their bodies called an exoskeleton, while some invertebrates have no skeleton at all!

Detailed explanation-3: -Basically, the vertebrate skeleton is internal (an endoskeleton) while the arthropod skeleton is external (an exoskeleton). Here, both kinds will be referred to as skeletons. The vertebrate skeleton is buried under skin and muscle.

Detailed explanation-4: -Frogs and toads don’t have exoskeletons because they are vertebrates with an evolved endoskeleton which is made of a series of internal bones.

Detailed explanation-5: -All vertebrates have an endoskeleton. However invertebrates can be divided again between those with an exoskeleton and those with a hydrostatic skeleton.