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Anticoagulant found in the blood:

Formation of lymph:

A disorder of red blood cell morphology is:

All of the following are part of the immune system except:

White blood cell with reddish granules; numbers increase in allergic reactions:

Pigment produced from hemoglobin when red blood cells are destroyed:

Foreign material that invades the body:

Respiratory disorder in the neonate:

Examples of immunoglobulins:

Initially, a small 2.0-kg rock is whirling at the end of a very thin string in a circular path of radius 0.75 m on a horizontal frictionless surface, as shown in the figure. The initial tangential speed of the rock was 5.0 m/s. The string has been slowly winding around a vertical rod, and a few seconds later the length of the string has shortened to 0.25 m. What is the instantaneous speed of the mass at the moment the string reaches a length of 0.25 m?