Which of the following is NOT an exoskeleton | vedclass

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(A) Vertebrates possess an endoskeleton made of bone or cartilage. However,many vertebrates also develop an exoskeleton derived from the epidermis or

Vedclass · Accepted Answer

Calcium carbonate plates

Vedclass · Answer

(A) Vertebrates possess an endoskeleton made of bone or cartilage. However,many vertebrates also develop an exoskeleton derived from the epidermis or dermis. $1$. Feathers,hooves,and nails are classic examples of epidermal derivatives that form the exoskeleton in various vertebrate groups (birds and mammals). $2$. Calcium carbonate plates are typically found in invertebrates like echinoderms (e.g.,sea urchins) or mollusks,not as a primary exoskeleton in vertebrates. Therefore,calcium carbonate plates are not considered an exoskeleton of vertebrates.

Which of the following is $NOT$ an exoskeleton of vertebrates?

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