Melanin II Natural Selection

UVR is required for Vitamin D production.

• True

• False

UVR has an indirect effect on Vitamin B production.

• True

• False

The image shows_

• The farther from the equator the less UVR

• The closer to the equator the less UVR

Taken together these graphs show _

• The closer to the equator the higher the UVR and the darker the skin tone

• The farther from the equator the higher the UVR and the darker the skin tone

This graphic accurately shows the phenotypes of people in relationship to latitude

• True

• False

Process by which individuals that are better suited to their environment survive and reproduce most successfully

• adaptation
• evolution
• natural selection
• fitness

Different traits within a population

• speciation
• fitness
• natural selection
• variation

What does this image represent?

• weather conditions

• amount of ultraviolet light intensity

• skin color

• altitude

Melanin protects

• Vitamin D breakdown

• Folate breakdown

• DNA mutations

• Bones from breakdown

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.