Question

Which of the following is least likely to be an example of normal plant development?

A. A tree flowering for the first time

B. production of a branch from a bud in the spring

C. healing a wound after attack by an herbivore

D. a seed germinating to produce a seedling

Why is collenchyma present (instead of sclerenchyma) for support in areas of the plant still undergoing elongation growth?

A. Sclerenchyma cells are only produced in mature fruits and seeds.
B. Collenchyma have flexible cell walls that can elongate better than sclerenchyma
C. Collenchyma cells are stronger and more rigid than sclerenchyma cells.
D. Collenchyma cells divide more rapidly than sclerenchyma.