MCQ
Enzymes are absent in
- AAlgae
- BFungi
- CBacteria
- ✓Virus
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$R$ : $NAD$ derived from niacin is a co-enzyme.
$(i)$ They have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
$(ii)$ They support and protect softer tissues and organs.
$(iii)$ Osteocytes are present in the spaces called lacunae.
$(iv)$ They also interact with skeletal muscles attached to them to bring about movements.
Which of the following type of tissue is being described by above statements