Question

the organ A of a tree have a large number of tiny pores called B on their surface.Each pore is surround by a pair of cells called C.The opening amd closing of pores is controlled by C.The gas D present in the air enters the organ A through pores B and utilized in food making process E goes through the same pores. what are A B C D E

Answer 1

A=stomata
B=stoma
C=guard cell
D=CO2
E=respiration