What region of the root provides the penetration force?
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Root cap
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Zone of cell division
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Maturation region
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Elongation region
D
Correct answer
Explanation
The elongation region (zone of elongation) is where cells actively expand and push the root tip through soil. The root cap protects but doesn't provide force. The zone of cell division adds cells, and maturation region is where differentiation occurs - neither provides penetration force.