1.
A hollow muscular organ that stores urine before expelling it from the body.
A. 
B. 
C. 
D. 
2.
A collection of glands that secrete chemical messages called hormones. The hormones pass through the blood to the target organ resulting in a chemical change in the body.
A. 
B. 
C. 
D. 
3.
A small, pear-shaped muscular sac, located under the right lobe of the liver, in which bile secreted by the liver is stored until needed by the body for digestion.
A. 
B. 
C. 
D. 
4.
A pair of organs functioning to maintain proper water and electrolyte balance, regulate acid-base concentration and filter the blood of metabolic wastes, which are then excreted as urine.
A. 
B. 
C. 
D. 
5.
Beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as feces
A. 
B. 
C. 
D. 
6.
A large, reddish-brown, organ located in the upper right portion of the abdominal cavity that secretes bile and is active in the formation of certain blood proteins and in the metabolism of carbohydrates, fats, and proteins
A. 
B. 
C. 
D. 
7.
Either of two spongy, saclike respiratory organs in most vertebrates, occupying the chest cavity together with the heart and functioning to remove carbon dioxide from the blood and provide it with oxygen.
A. 
B. 
C. 
D. 
8.
The system of cells, tissues, and organs that regulates the body's responses to internal and external stimuli. Invertebrates, it consists of the brain, spinal cord, nerves, ganglia, and parts of the receptor and effector organs.
A. 
B. 
C. 
D. 
9.
A long, irregularly shaped gland in vertebrates, lying behind the stomach, that secretes pancreatic juice into the duodenum and insulin, glucagon, and somatostatin into the bloodstream.
A. 
B. 
C. 
D. 
10.
The upper portion of the bowel, in which the process of digestion is practically completed. It is narrow and contorted and consists of three parts, the duodenum, jejunum, and ileum.
A. 
B. 
C. 
D. 
11.
The enlarged, saclike canal, one of the principal organs of digestion, located between the esophagus and the small intestine.
A. 
B. 
C. 
D.