MCQ
The joint between atlas and axis is:
- ABall and socket joint.
- ✓Pivot joint.
- CSaddle joint.
- DHinge joint.
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$III.$ Enzyme catalyzing reaction that fixes $CO _{2}$ $IV.$ Presence of Calvin cycle
$V.$ Leaf anatomy
Which one does not differ in a $C_{3}$ and $C_{4}$-plants?
