Final answer:
Sclerenchyma cells are a type of simple tissue that provides support in plants through fibers and sclereids.
Step-by-step explanation:
Sclerenchyma cells are a type of simple tissue in plants that provide support.
There are two types of sclerenchyma cells: fibers and sclereids. Both types have thick secondary cell walls made of lignin.
Fibers are long, slender cells, while sclereids are smaller-sized.
Sclerenchyma fibers can be used by humans to make linen and rope.
Sclereids are responsible for the gritty texture of pears.