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Answer 1:-.
1:- They are large, brightly colored and often scented. If small, they are aggregated in numbers to form a broad expanse of color against the background. Insects are thus attracted visually and sometimes through the alfactory sense over some distance.
2:- The flowers provide a source of food for insects which imbibe sugary nectar from the nectarines or collect the pollen, or both.
3:- Nectaries, anthers and stigmas are situated in a special relationship to one another, so that the anthers and stigmas must be disturbed if the nectar or pollen is to be reached by the insect, i.e. there may be highly specialized pollination mechanisms in the flower, e.g early purple orchis.
4:- The pollen grains are usually thick-walled, sticky and spiny to enhance adhesion to insect bodies.
Answer 1:-.
1:- They are large, brightly colored and often scented. If small, they are aggregated in numbers to form a broad expanse of color against the background. Insects are thus attracted visually and sometimes through the alfactory sense over some distance.
2:- The flowers provide a source of food for insects which imbibe sugary nectar from the nectarines or collect the pollen, or both.
3:- Nectaries, anthers and stigmas are situated in a special relationship to one another, so that the anthers and stigmas must be disturbed if the nectar or pollen is to be reached by the insect, i.e. there may be highly specialized pollination mechanisms in the flower, e.g early purple orchis.
4:- The pollen grains are usually thick-walled, sticky and spiny to enhance adhesion to insect bodies.
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