2. It is a fluid waste
a. Urine
b.ureter
c. urethra
d.kidney _

3. It is a tiny filtering units
a. Nephron
b.urethra
c. ureter
d. kidney

4. What kind of blood is in the renal artery?
a. Clean
b.unclean
c.sometimes clean
d. purified

5. What happens to you diaphragm when you exhale
a. It relaxes
b.it relaxes and contracts
c.it contracts
d.it absorbs air

6. Which is the correct pathway of the air in the lungs?
a. Nostril-nasal cavity-pharynx-larynx-trachea-bronchus-brochiole-alveoli

b. Nostrils-pharynx-nasal cavity-larynx-bronchus-bronchiole-trachea-alveoli

c.Nostrils-larynx-pharynx-nasal cavity-trachea-bronchiole-bronchus-alveoli

d. Nasal cavity-pharynx-larynx-nostril-bronchus-pharynx-nostril-larynx

7. The soft spongy, gray substance found inside the skull or cranium.
a.Brain
b. skull
c.pelvis
d. heart

8. The largest and uppermost part of the brain, has special areas to receive messages about sight,hearing,smell, and touch, it enables us to think,memorize, recognize and be aware of the things happening in the sorroundings.
a. Cerebrum
b. cerebellum
c medulla
d. nerves

9. Controls involuntary actions such as heartbeat and breathing
a. Cerebrum
b. cerebellum
c. medulla
d. nerves


10. A rapid automatic action or response made by the body without action of the brain
a. Reflex action
b. motor
c sensory
d. neurons

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