Select the correct option for the shape of guard cells in stomata.
Stomata of Monocots Stomata of Dicots $A$. Bean-shaped Dumbbell-shaped $B$. Dumbbell-shaped Bean-shaped $C$. Bean-shaped Bean-shaped $D$. Dumbbell-shaped Dumbbell-shaped
| Stomata of Monocots | Stomata of Dicots | |
| $A$. | Bean-shaped | Dumbbell-shaped |
| $B$. | Dumbbell-shaped | Bean-shaped |
| $C$. | Bean-shaped | Bean-shaped |
| $D$. | Dumbbell-shaped | Dumbbell-shaped |
- A$A$
- B$B$
- C$C$
- D$D$
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Match the partial pressures of oxygen in different parts involved in diffusion compared to the atmosphere.
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| $P$. Atmospheric air | $I$. $159$ |
| $Q$. Tissues | $II$. $95$ |
| $R$. Oxygenated blood | $III$. $40$ |
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