<span>The correct answer is Platelet. Platelets are actually thrombocytes which are found in blood and are responsible for clotting the blood in case of an injury. They are recognizable easily for not having nuclei. T-cells, B-Cells and Phagocytes are all types of white blood cells because the differences between them are minor.</span>
Aerobic exercise like running, jogging, swimming and walking because all of these get your heart rate up.
