- Answer the Question Using the Accompanying Figure

question 5

Multiple Choice

- Answer the question using the accompanying figure. Rapid population growth is represented by the letter ____.

• A) A
• B) B
• C) C
• D) D
• E) E

---

Definitions:

Keratin

A type of protein found in the skin, hair, and nails, responsible for their strength, protection, and waterproofing properties.

Waterproofing

The process of making an object or structure resistant to water penetration.

Mucus

A sticky, thick fluid secreted by mucous membranes and glands, providing lubrication and protection in various parts of the body.

Gas Exchange

The biological process through which organisms exchange oxygen and carbon dioxide with their environment, essential for respiration.