MCQ
When a plant is girdled $($ringed$)$.
- AThe root and shoot die at the same time.
- BThe shoot dies first.
- ✓The root dies first.
- DNeither root nor shoot will die.
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$(I)$ Central nervous system is ventral, solid and double
$(II)$ Gill slits are absent
$(III)$ Heart is ventral
$(IV)$ Post anal tail is absent