MCQ
Which is not a feature of dinoflagellates?
- AThey cause red tides
- BTheir cell wall has stiff cellulose plates on the outer surface
- CThey release toxins
- ✓These are mostly fresh water and non-photosynthetic
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$I$. Acidic $II$. Basic $III$. Neutral $IV$. Contain $C$ and $N$.
Statement $I:$ Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement $II:$ Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:
