In the context of evolutionary influences on motion sickness, a major cause of ill health was:
A) old age.
B) improper nutrition.
C) ingestion of toxic substances such as poisonous plants or spoiled meat.
D) the brain's inability to process information from more than one sense at a time.

Question

Quizplus · Accepted Answer

Motion sickness is thought to have evolved as a defense mechanism against neurotoxins. When the brain receives conflicting signals from the eyes and the inner ear about the body's movement, it might interpret this as a sign of poisoning, triggering nausea and vomiting to expel the toxin. Ingesting toxic substances, such as poisonous plants or spoiled meat, would have been a common threat to early humans, making this an evolutionary response to avoid poisoning.

In the Context of Evolutionary Influences on Motion Sickness, a Major