Insects are encouraged to visit flowers by
A food such as nectar
A pleasant odour
Pheromones
None
Which among the following flowers are small with long stamens and hang outside the flower?
Hydrophily
Entomophily
Anemophily
Which of the following have two different styles?
Dichogamy
Heterostyly
Uni sexcuality
None of these
Respiration takes place in the presence of
Light
Chlorophyll
Optimum temperature
Moisture
In order for pollination to occur the pollen must be placed on the carpel of the flowers.
True
False
Partly true
An example of protogyny is
Primrose
Banyan
Sunflower
Palm
Which of the following is also called cross pollination?
Allogamy
Geitogamy
Autogamy
Bright coloured petals with pollen grains large and modified are seen in _______ pollination.
Orinthophily
Unisexuality
Agents of Cross pollination is by ______ and biotic factors.
Water
Wind
Both A & B
Which of the following is possible when the flower is bisexual?
Geitonogamy
