If you _______________ a patient record, you should retrace your steps from the last place you knew the record's location.

What is the hematocrit?

A) The concentration of platelets found in a blood sample B) The mass percentage of blood made up of red and white blood cells C) The ratio of the number of white blood cells to the number of platelets D) The volume of whole blood occupied by packed red blood cells

Smell receptors and taste cells are both a special type of receptor called a(n) ________.

Fill in the blank(s) with the appropriate word(s).