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Answer:
I.
1) Heart
2) Nostrils
3) Dendrites
4) Pleura
5) Heart Beat
6) Hemoglobin
7) Larynx
8) Brain
9) Neuron
10) "Lub-dub"
11) Alveoli
12) Plasma
13) Cerebellum
14) Bronchi
15) Axon
II.
1. Rib cage - The rib cage protects the organs in the thoracic cavity, assists in respiration, and provides support for the upper extremities. During inspiration the ribs are elevated, and during expiration the ribs are depressed.
2. Epiglottis - The epiglottis is a small, movable "lid" just above the larynx that prevents food and drink from entering your windpipe.