Choose the One Most Appropriate Answer for Each

question 6

Multiple Choice

Choose the one most appropriate answer for each.
-Trachea

• A)Flexible windpipe reinforced with cartilage
• B)Detect carbonic acid in artery walls and signal the brain to stimulate faster and deeper breathing
• C)Oxygen-rich form of a respiratory protein
• D)Contains a pair of vocal cords
• E)Stimulate faster breathing in dangerous situations
• F)Part of the brainstem; controls breathing
• G)Throat passage behind the mouth
• H)One inhalation and one exhalation
• I)Connect trachea to lungs
• J)Flaplike structure that points upward allowing air to enter trachea, but blocks the larynx during swallowing
• K)Raise and lower the ribcage
• L)Microscopically small pockets lined with moist epithelium that function in gas exchange

---

Definitions:

Natufians

A prehistoric culture located in the Near East, known for early developments in agriculture and sedentary life around 12,000 to 9,500 BC.

Subsistence

The means by which life is maintained, often referring to the way societies obtain their food.

Climatic Conditions

The overall weather patterns and environmental conditions of a specific region over time.

Microlith

Small blades of flint or similar stone which were hafted together in wooden handles to make tools; widespread in the Mesolithic.