What was mystery fluid A?

A major respiration muscle directly below the lungs.

The alveoli exchange:

_____ are tiny, microscopic structures that are bunched together in grape-like clusters where gas exchange takes place in the lungs.

The _____ is made up of firm, C-shaped cartilage rings and is about 4 inches long and 1 inch in diameter and is very flexible in nature.

In Greek Anatomy this term literally means to cut up or cut open.

G on the diagram represents Wk. 2 quiz pic(6).pdf 

____ simplest level of structural hierarchy – atoms–molecules–organelles.

_____ organ systems working together to achieve functions required for life.

_____ would be the middle of the body structure.