1. Tardigrade
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  3. Biology
  4. The matrix of bone is hard due to A while that of cartilage is pliable due to B A B A Calcium salts Chondroitin salts B Calcium salts Hyaluronic acid A C Chondroitin sulphate Hyaluronic acid D Chondroitin sulphate Calcium salts

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Q. The matrix of bone is hard due to __A__ while that of cartilage is pliable due to __B__
A B
A Calcium salts Chondroitin salts
B Calcium salts Hyaluronic acid A
C Chondroitin sulphate Hyaluronic acid
D Chondroitin sulphate Calcium salts

NTA AbhyasNTA Abhyas 2020Structural Organisation in Animals

Solution:

Bone and cartilage both are specialized structural connective tissue. Cartilage is pliable and in embryonic life, this undergoes ossification to form bones. This formation is known as endochondrial ossification. After this ossification, some amount of cartilage persists and hence it is seen covering the bones. Cartilage forms bone by deposition of calcium and hence cartilage when it gets calcified into the bone. The matrix of cartilage consists of chondrin protein and chondroitin salts instead of calcium.