Share to: Red Blood Cell- 120 days life span White Blood Cell-The lifespan of white blood cells ranges from 13 to 20 days, after which time they are destroyed in the lymphatic system â¦ . Platelets-usually 10 -12 days These numbers do not include the amount of time it takes for them to mature in the bone marrow.ed cells transport oxygen in combination with the iron pigment, hemoglobin. The function of white blood cells is to fight infection, while platelets initiate the clotting nec â¦ essary to stop bleeding after a wound. Nutrients, wastes, hormones, antibodies, and enzymes are dissolved in the plasma.
Definition of Parabola. A parabola is the set of all points in a plane that are equidistant from the focus and the directrix of the parabola. The graph of any quadratic equation is a parabola.
Definition of parabola. 1 : a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line : the intersection of a right circular cone with a plane parallel to an element of the cone.