____ is a fatty molecule made by alveolar cells to reduce surface tension and prevent alveolar collapse between breaths.

The flap of elastic cartilage that protects food from entering the larynx when swallowing is the ____.

Using Figure 13.1, identify the following: The diaphragm muscle is indicated by ____.

Folds of mucous membrane called ____ vibrate to provide speech.

Air flowing out of the lungs is known as ____.

Using Figure 13.1, identify the following: The larynx is indicated by ____.

Which challenge is commonly faced by families during the school age stage of a child’s development? 

If you wrote an argumentative letter that was published in the editorial section of a local newspaper, what type of audience would you be addressing?

Completely factor the given polynomial, if possible. 

Completely factor the given polynomial, if possible. (Hint: This is a sum of two cubes.)  = ( + )  (  +  +  )  Make sure to type the correct sign with your factors.