Question

Question. 2
Study the diagram carefully and answer the questions that follow:
i) State the type of pollination mentioned in the above diagram
ii) State two characteristics of male and female plants which favour such pollination.
iii) State any two ways by which nature favours cross pollination and explain

Answer 1

Answer:

i)Water pollination

ii)The two characteristics of water pollinated plants are:

a)The female flowers have a very long pedicel, therefore it reaches the surface of water.

b)Their flowers are small in size, light-weighted and have lots of pollen grains.

iii)Nature favours cross-pollination in the following ways:

a)Unisexuality: Unisexual flowers, i.e. different male and female flowers, either borne on different plants or same plant. E.g. In Papaya and Cucumber

b)Dichogamy: Maturation of androecium and gynoecium occurs at different times. E.g. In apple, stigma matures before anthers (Protogyny).