Which connective tissue type has no blood vessels within it?

A) bone
B) cartilage
C) dense connective tissue
D) loose connective tissue
E) adipose

An organ consists of two or more ____.

A) cells
B) muscle cells
C) tissues
D) functional structures
E) fluid types

A body fluid has been collected and IgA antibodies have been detected. Which of the following statements is correct in regard to the fluid?

A) The body fluid is most likely saliva due to the presence of IgA antibodies.
B) The body fluid is most likely lymph that contain B lymphocytes because IgA antibodies are most often attached to B lymphocytes.
C) The body fluid is most likely blood because IgA antibodies are only found in blood.

The periarterial lymphatic sheath and the lymphatic nodules are part of the red pulp of the spleen.

What type of pollinator would an unscented, red flower attract?

A) honeybees
B) butterflies
C) beetles
D) bats
E) birds

The adrenal medulla secretes which hormone during times of excitement, stress, and exercise?

A) erythropoietin
B) norepinephrine
C) testosterone
D) mineralcorticoids
E) thymosin

Occlusion of which of the following would primarily damage the posterior wall of the heart?

A) Circumflex artery
B) Pulmonary artery
C) Right marginal artery
D) Coronary sinus artery
E) Right coronary artery

The ________ zone extends from the trachea to the terminal bronchioles.

In a motor unit, each neuron innervates (controls)a single muscle fiber.

The nervous system and the endocrine system are the major control systems of the body.