Vectors that help in pollination include wind, insects and birds.
There are observable differences between pollen grains pollinated by wind or insects and bird.
Pollen grains pollinated by wind are light and smooth and they can be carried easily by wind currents.
Pollen grains pollinated by insects and birds are heavy and rough with hooks on their exterior. The rough surfaces of pollen grains attach readily to the hairy bodies of insects.
Activity 1
Suggest and explain the type of pollination that occurs to Clitoria spp.
Activity 2
Suggest and explain if the pollen grains shown belong to an insect or wind-pollinated flower.