The morphology of plants is determined
A. by cell elongation at both the tip of the shoots and the roots.
B. by cell division at the tip of the roots and cell elongation at the tip of the shoots.
C. by cell death (apoptosis) along the radial axis.
D. by cell division at the tip of the shoots and cell elongation at the tip of the roots.
E. by cell division at both the tip of the shoots and the roots.
Answer: E
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