NEET BIOLOGY

Detailed explanation-1: -Pollen, which contains a lot of protein and is primarily used to rear the brood, is picked up by the bees almost as they fly past. It sticks to the hairs on the bees, and when they visit the next plant of the same species it is transferred in adequate quantities to their stigma.

Detailed explanation-2: -How does pollen get from one flower to another? Flowers must rely on vectors to move pollen. These vectors can include wind, water, birds, insects, butterflies, bats, and other animals that visit flowers. We call animals or insects that transfer pollen from plant to plant “pollinators”.

Detailed explanation-3: -When a bee lands on a flower, the hairs all over the bees’ body attract pollen grains through electrostatic forces. Stiff hairs on their legs enable them to groom the pollen into specialized brushes or pockets on their legs or body, and then carry it back to their nest.

Detailed explanation-4: -Cross-pollination occurs when pollen is transferred from one flower to another flower on the same plant, or another plant. Cross-pollination requires pollinating agents such as water, wind, or animals, and increases genetic diversity.

Detailed explanation-5: -Bee keeping helps in cross pollination of flowers of crop plants, since pollens are transferred from one flower to another by bees while they are collecting the nectar.