MCQ
Nematocysts take part in
- ALocomotion
- BOffence and defence
- CFood capture
- ✓All the above
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| Description | Structures |
| $(a)$ Tibia and fibula | Both form parts of knee joint |
| $(b)$ Cartilage and cornea | No blood supply but do require oxygen for respiratory need |
| $(c)$ Shoulder joint and elbow joint | Ball and socket type of joint |
| $(d)$ Premolars and molars | $ 20$ in all and $3$ rooted |