Bone

Q. A' and 'B' are specialised connective tissues. The former has a very hard matrix due to calcium salts in it and the latter has slightly pliable matrix due to chondroitin salts.
Identify 'A' and 'B'.
$\begin{array}{ccc}& \text{A}& \text{B}\\ \text{(1)}& \text{Bone}& \text{Tendon}\\ \text{(2)}& \text{Blood}& \text{Ligament}\\ \text{(3)}& \text{Bone}& \text{Cartilage}\\ \text{(4)}& \text{Cartilage}& \text{Bone}\end{array}$

1. $\left(4\right)$
2. $\left(1\right)$
3. $\left(2\right)$
4. $\left(3\right)$

Q.

Bone possesses a hard matrix made up of ____ and ____.

Q. The study of bones is called

1. Chondrology
2. Osteology
3. Anatomy
4. Cytology

Q. The number of bones in the adult human body

1. 310
2. 90
3. 406
4. 206

Q. The protein present in the strongest connective tissue is

1. chondrin
2. ossein
3. calcium
4. both b and c