Book Quiz: Skin Color

What causes the different shades

of skin color in humans?

• vitamin D

• folate

• epidermis

• melanin

Which of the following is

an example of heredity?

• There are a limited number

  of skin colors in the world.

• People that live close

  together tend to look alike.

• There are many different

  shades of skin color around

  the world.

• Children tend to resemble

  their parents and siblings.

If someone has more eumelanin,

their skin will generally

be

• darker

• lighter

• reddish

• yellowish

Which of the following is a

negative effect of ultraviolet

(UV) radiation from the Sun?

• skin cancer

• vitamin D production

• folate production

• sweating

Exposing bare skin to

sunlight enables the body

to produce

• vitamin A

• vitamin D

• vitamin B

• vitamin C

The amount of ____________ in

the iris determines eye color.

• folate

• radiation

• melanin

• cells

Sunlight strikes Africa more

directly than many other

parts of the world because

of

• its size as the largest

  continent on Earth

• its location in relation

  to the equator

• its location nearest to

  Earth’s poles

• the way it was formed

  two million years ago

Which of the following

happened after early

humans migrated to

colder parts of the world?

• Those humans developed

  the ability to sweat.

• Those humans shed their

  body hair.

• Those humans developed

  skin pigmentation.

• Those humans produced

  less melanin.

Why must people with albinism

make an extra effort to stay safe

from UV radiation?

• They have very low amounts

  of melanin in their skin.

• They have very high amounts

  of melanin in their skin.

• They have lost color on their

  skin in patches.

• They have lost melanocytes

  in their skin.

As a result of thousands of years

of human ________________, many

people no longer live in areas

that their skin color is best

suited for.

• generations

• development

• migration

• radiation