A sarcomere is: (check all that apply, may be more than one answer)

The stage of cell respiration that takes place in the cytoplasm of cells is the Krebs or citric acid cycle:

The major effect of acidosis on the body is:

The trapezius muscle located in the middle of the back is capable of producing which two shoulder movements?

The pulmonary veins return oxygenated blood from the _________ to the __________?

Class of lever system shown.

The tissues of the wall of an artery (or vein), in order from innermost to outermost, are:

Which type of leukocyte (white blood cell) acts as a phagocyte of pathogens (may be more than 1 answer, check all that apply)?

The area in the ____ cavity in which the heart is located is called the ____?

The type of blood cell that recognizes foreign antigens that enter the body due to injury or infection and produces antibodies is the: