(a) Identify A, B and C in the given diagram and write their functions.
(b) Mention the role of gamete and zygote in sexually reproducing organisms.
(a) A = Stigma = Pollen grains land here and germinate.
B = style = Pollen tube passes through style.
C = Female gamete = Male gamete fuses to it to form zygote. It is called fertilization.
(b) Roles of (in Sexually Reproducing organisms) :
Gamete: The diploid organisms produce haploid gametes. The male gamete fuses to
female gamete to form diploid zygote.
Zygote: The diploid zygote divides to form embryo that develops into a diploid organism.