Question

the organ A of a tree has many tiny pores called B on their surface. Each pore is surrounded by a pair of cells called C. The openibgs and closing of pores in A is controlled by C. The gas D present in air enters organ A throuhh pores B and helps to make food. What are A,B,C,D?

Answer 1

A.leaf
B.stomata
c.guard cells
D.CO2

Answer 2

a is leaf
b is stomata
cis guardcells
dis oxygen