A) Companion cells
B) Cuticle cells
C) Cork cells
D) Sclerenchyma cells
E) Guard cells

A) waxy layers that cover leaves.
B) openings in the leaf epidermis.
C) extensions of bundle sheaths.
D) particularly numerous on the upper epidermis.
E) guarded by two stipule cells.

A) arranged tightly together.
B) separated by intercellular spaces.
C) responsible for the opening and closing of stomata.
D) devoid of chloroplasts.
E) covered by a waxy cuticle, which they secrete.