Evolution of Human Skin Color

Quiz
•
Biology
•
11th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most important pigment that determines skin color in humans?
Tyrosinase
Keratinocytes
Melanin
Hemoglobin
Tags
NGSS.HS-LS3-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the ultraviolet radiation (UVR) can melanin absorb to protect the DNA within skin cells?
50%
75%
90%
99.9%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which cells are primarily responsible for the production of melanin?
Melanocytes
Keratinocytes
Hemocytes
Erythrocytes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of melanin in relation to ultraviolet radiation (UVR)?
It helps to produce Vitamin D.
It serves as the body's natural sunscreen.
It increases the absorption of UVR.
It has no significant function related to UVR.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did early human ancestors develop dark skin according to the text?
To protect against cold climates.
To produce more Vitamin D.
To protect against the damaging effects of intense equatorial sunlight.
To adapt to the migration to northern regions.
Tags
NGSS.HS-LS4-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the popular theory for the evolution of lighter skin in humans who migrated to areas with less intense sunlight?
They needed to absorb more UVR to produce Vitamin D.
They needed to adapt to colder climates.
They needed to conserve body heat.
They needed to blend in with the snowy environment.
Tags
NGSS.HS-LS4-2
NGSS.HS-LS4-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is melanin? Describe the two main types of melanin.
A type of skin cell; eumelanin and pheomelanin
A pigment that gives skin its color; eumelanin and keratinocytes
A pigment that gives skin its color; eumelanin and pheomelanin
A vitamin necessary for skin health; keratinocytes and melanocytes
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