Which of the following is not a specialized epidermal cell?
a- trichome
b- root hair
c- guard cell
d- cork

What percentage of light hits earth's surface directly?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged