MCQ
The main function of abscisic acid in plants is to:
- AIncrease the length of cells
- BPromote cell division
- CInhibit growth
- DPromote growth of stem
Explanation:
Abscisic acid is the plant hormone, which is responsible for dormancy of seeds and inhibition of seeds.
It stimulates the closure of stomata, inhibit shoot growth, stimulate the storage of proteins in seeds, and so on.

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Assertion $(A)$:All vertebrates are chordates but all chordates are not vertebrates.
Reason $(R)$:Notochord is replaced by vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:
