Why did 40% of the human population evolve to tolerate lactose?(1 point)

Question

Responses

Babies rely on milk to survive, so they need to be able to tolerate lactose.
Babies rely on milk to survive, so they need to be able to tolerate lactose.

People who have an intolerance experience physical pain, so a tolerance evolved to avoid that.
People who have an intolerance experience physical pain, so a tolerance evolved to avoid that.

Within cultures that rely on milk-producing animals, individuals who tolerated lactose had a survival advantage.
Within cultures that rely on milk-producing animals, individuals who tolerated lactose had a survival advantage.

Lactose tolerance allows people to enjoy a wide variety of food, including milk, butter, ice cream, and cheese.

Answer 1

The correct response is: Within cultures that rely on milk-producing animals, individuals who tolerated lactose had a survival advantage.

Lactose tolerance evolved in certain human populations primarily in response to the domestication of dairy animals and the consumption of their milk. In societies where milk was a significant part of the diet, individuals with the ability to digest lactose had a nutritional advantage, as they could access calories and nutrients from milk, enhancing their survival and reproductive success.