Skin color

What does this image represent?

• weather conditions

• amount of ultraviolet light intensity

• skin color

• altitude

Traveling away from the equator, what happens in general to the amount of UV intensity?

• The intensity decreases.

• The intensity increases

• The intensity stays the same.

• It is impossible to predict.

Your skin color is determined by your

• Genetic Inheritance 
• Environmental factors
• Culture
• None of the above

What is melanin?

• A protein pigment that absorbs and reflects light
• A protein that is waterproof and tough
• A cell found in the epidermis
• A vitamin that helps you sleep

What kind of cells create melanin?

• Keratinocyte
• Melanocyte
• Leukocyte
• Erythrocyte

Different tones of human skin color evolved 

• in response to varying levels of UV radiation in the environment
• Randomly and for no reason at all

The graph in Figure 2 summarizes the age at which people are diagnosed with melanoma, the most serious form of skin cancer. When would you see the most likely chance of developing skin cancer?

• 35-44
• 45-54
• 55-64
• 65-74

What are the two types of melanin?

• Light melanin and dark melanin
• Eumelanin and Dysmelanin
• Eumelanin and Pheomelanin
• All of the above