Question

When an insect is feeding on a plant, which types of tissue are at work to protect the plant and help it heal from injury?
dermal and collenchyma
parenchyma and collenchyma
vascular and dermal
ground and parenchyma
a or d

Answer 1

The tissue that protects is the dermal tissue (epidermis/cuticle), and the tissue that heals is parenchyma (a ground-tissue type that divides and forms repair tissue). The best answer is therefore d — though strictly the ideal pair would be “dermal and parenchyma.”