¿Por qué somos diferentes? Tú color de piel

The video explores how evolution has led to variations in skin color, primarily due to melanin, which provides sun protection. Darker skin is more common near the equator, while lighter skin is found near the poles. Melanin also prevents vitamin B9 degradation, while lighter skin aids in vitamin D production. Adaptation to different environments is discussed, noting that recent migrations may not have allowed enough time for full adaptation. Modern solutions like sunscreen and vitamin D supplements are also mentioned.

What is the primary function of melanin in the skin?

• To increase vitamin D production

• To enhance skin elasticity

• To protect against sun damage

• To lighten skin color

Where are darker skin tones predominantly found on the planet?

• At the equator

• In desert regions

• In mountainous areas

• Near the poles

How does melanin affect vitamin B9 in the body?

• It enhances its production

• It converts it into vitamin D

• It prevents its degradation

• It reduces its absorption

Why do fair-skinned individuals produce more vitamin D?

• They have less melanin

• They are exposed to more sunlight

• They consume more vitamin D-rich foods

• They have more melanin

What modern solution can dark-skinned individuals use when living in low sunlight areas?

• Consume more vitamin B9

• Increase sun exposure

• Use sunscreen

• Take vitamin D supplements