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.
What is a Parabolic Reflector. The parabola is special type of curve that has a focal point to which parallel beams of light will be reflected. The opposite is also true, a light source placed at the focus will create a parallel beam of light, as in a spotlight. A parabola is the shape of the path of a projectile fired into the air and allowed to fall again (assuming no friction from the air), or a stone that is thrown into the air. It is also the shape obtained if you were to cut a cone shape along a line parallel to it's side.