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Which two of these characteristics are examples of endoskeletons?

scales in fish
bones in mammals
calcium-rich plates in echinoderms
appendages in arthropods

User CRS
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2 Answers

3 votes
the answer is bones in mammals
User Robert Bue
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6 votes

Answer:

The correct answers are "bones in mammals" and "calcium-rich plates in echinoderms"

Step-by-step explanation:

Endoskeletons are defined as internal structures of animals that give support to the body and are generally comprised of a mineralized tissue. Two examples of endoskeleton are the bones in mammals and the calcium-rich plates in echinoderms. The bones in mammals and other vertebrates are internal structures made of mineralized collagen, while the calcium-rich plates in echinoderms are internal structures that are interconnected and covered for an epidermis organ.

User Ostap Andrusiv
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