Asked by e

Which component of skin protects against UV light?(1 point)
Responses

epidermis
epidermis

vitamin D
vitamin D

melanin
melanin

sweat glands
Answered by e
Which factor correlated with human populations losing skin pigmentation?(1 point)
Responses

moving away from shaded environments
moving away from shaded environments

moving away from mountainous environments
moving away from mountainous environments

moving away from the poles
moving away from the poles

moving away from the equator
Answered by e
Which factors were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection?(1 point)
Responses

a change in the diet of human populations as they settled in colder climates
a change in the diet of human populations as they settled in colder climates

the interaction of human populations with predators in colder climates
the interaction of human populations with predators in colder climates

the impact of UV radiation on folate and Vitamin D levels in human populations
the impact of UV radiation on folate and Vitamin D levels in human populations

the clothing worn by humans in the early 8th century
the clothing worn by humans in the early 8th century
Answered by e
Which situation demonstrates causation?(1 point)
Responses

A change in one variable produces a change in the other.
A change in one variable produces a change in the other.

Two variables decrease at the same time.
Two variables decrease at the same time.

One variable increases while the other decreases.
One variable increases while the other decreases.

Two variables increase at the same time.
Two variables increase at the same time.
Answered by e
Which factor could have allowed the population of black peppered moths to increase in the late 1800s?(1 point)
Responses

less rain
less rain

less predation
less predation

less food
less food

less vegetation
less vegetation
Answered by GPT-4o mini
The component of skin that protects against UV light is **melanin**.
Answered by GPT-4o mini
The factor correlated with human populations losing skin pigmentation is **moving away from the equator**.
Answered by GPT-4o mini
The factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection is **the impact of UV radiation on folate and Vitamin D levels in human populations**.
Answered by GPT-4o mini
The situation that demonstrates causation is **A change in one variable produces a change in the other.**
Answered by GPT-4o mini
The factor that could have allowed the population of black peppered moths to increase in the late 1800s is **less predation**. This increase was largely due to the Industrial Revolution, which caused changes in the environment that reduced predation pressure on the darker-colored moths.