Swelling in the feet and ankles is a very common symptom and can have a variety of causes. One way that doctors pinpoint the cause of swelling is by noting whether it is occurring in one limb, or in both equally. In many cases, the cause of swelling is something that requires medical attention, such as an infection or injury.
Pollination and Fertilization of Plants Visit a flower garden in the summer and youâll see and hear lots of activity. Bees are buzzing and busily moving from flower to flower.
Types of Pollination. Pollination is the process of transfer of pollen grains from the stamens to the ovules of the ovary. The process of pollination is an interchange between flower and agent. This was first introduced in the 18th century by Christian Konrad Sprengel.