alleryWhen xylem and phloem lie alternately along different radii, as in roots, the arrangement is of which type?
AConjoint type
BRadial type
CCollateral type
DConcentric type
Answer & Solution
Correct answer: B. Radial type
1. Here the two tissues do not share a radius but sit on separate ones.
2. They alternate around the centre of the organ.
3. This arrangement is called radial, and it occurs in roots.
_Source: syllabus Biology, Ch 6 'Anatomy of Flowering Plants'_
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