This might help:
https://quizlet.com/1965478/environmental-health-test-1-flash-cards/
Answer:
After you swallow, peristalsis pushes the food down your esophagus into your stomach. Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.
Explanation:
Answer:
c. Cells contain tiny organisms within them.
Hydrologists measure the properties of bodies of water. For example, volume and stream flow.
