MCQ
Rosette quality of cabbage can be changed by the application of:
- AIAA
- ✓GA
- CIBA
- DEthephon
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$A$. Lenticels are the lens-shaped openings permitting the exchange of gases.
$B$. Bark formed early in the season is called hard bark.
$C$. Bark is a technical term that refers to all tissues exterior to vascular cambium.
$D$. Bark refers to periderm and secondary phloem.
$E$. Phellogen is single-layered in thickness.
Choose the correct answer from the options given below:
$III.$ 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?