1. The kidneys _____ in the blood salts, water, and nitrogenous wastes.
A. Takes
B. Processes
C. Digests
D. Filters

2. The right kidney is slightly lower due to the presence of the _____ on the right region of the body
A. Heart
B. Liver
C. Lungs
D. Kidney

3. The kidneys remove urea from the blood through tiny filtering units called ______.
A. Neph
B. Filters
C. Phrons
D. Nephrons

4. Kidneys removes liquid wastes from the blood in the form of _____.
A. Urine
B. Salts
C. Feces
D. Stool

5. _____ are bean-shaped paired organs.
A. Stomach
B. Heart
C. Kidneys
D. Brain
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