What do sclerenchyma and collenchyma have in common?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

Why are common names a problem for scientist?