Examlex
How many times does the Moon cross the ecliptic each month?
Moisture
The presence of a liquid, especially water, often in trace amounts in the environment or substances.
Food Passage
The process by which food moves through the digestive tract, starting from ingestion into the mouth and continuing through the esophagus, stomach, and intestines until waste is excreted.
Air Passage
The path through which air moves into or out of the respiratory system, including the nose, throat, and lungs.
Respiratory Organ
An anatomical structure that animals use for the exchange of gases with their environment, primarily oxygen and carbon dioxide; examples include lungs, gills, and tracheae.
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