Draw a neat diagram of a flower, label its four whorls, and name the organs that produce gametes.
 
Answer variants:
Petals
Pistil
Sepals
Female gamete
Stamens
Male gamete
a. Calyx -

b. Corolla -

c. Androecium -

d. Gynoecium -
e. Anthers  -

f. Ovary -