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Arindam Paul posted an Question
June 02, 2021 • 17:56 pm
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30 points
30 points
- IIT JAM
- Biotechnology (BT)
43. the exoskeletons of most of the aquatic crustaceans are bio-mineralized with a. càlcium chloride b. calcium carbonate c. magnesium carbonate d. magnesium ch
43. The exoskeletons of most of the aquatic crustaceans are bio-mineralized with A. Càlcium chloride B. Calcium carbonate C. Magnesium carbonate D. Magnesium chloride
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Abhijeet Gaurav![best-answer]()
Correct Answer is option (B). Arthropod exoskeletons contain chitin; the addition of calcium carbonate makes them harder and stronger, at the price of increased weight. Ingrowths of the arthropod exoskeleton known as apodemes serve as attachment sites for muscles. These structures are composed of chitin and are approximately six times stronger and twice the stiffness of vertebrate tendons.