Wind pollination is common in:
1. Legumes
2. Lilies
3. Grasses
4. Orchids

Both, autogamy and geitonogamy are prevented in -
1. Papaya
2. Cucumber
3. Castor
4. Maize

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:

The gynoecium consists of many free pistils in flowers of
1. Aloe
2. Tomato
3. Papaver
4. Michelia

Even in absence of pollinating agents, seed setting is assured in:

Which one of the following statements is wrong?

Plants with ovaries having only one or a few ovules, are generally pollinated by:
1. Bees
2. Butterflies
3. Birds
4. Wind

What is the function of germ pore?
1. Emergence of radicle
2. Absorption of water for seed germination
3. Initiation of pollen tube
4. Release of male gametes

Perisperm differs from endosperm in:

Megasporangium is equivalent to :
1. Fruit
2. Nucellus
3. Ovule
4. Embryo sac