Which of the following is an evolutionary explanation for the development of motion sickness?
A)Poisons disturb the vestibular and vision systems, resulting in nausea and vomiting to expel the poison.
B)When humans evolved, the vestibular senses became less important, thereby degenerating.
C)The brain developed an increased capacity for thought, thereby taking over some of the cortex previously used for perception of motion.
D)Man evolved on land and has not developed a complex three-dimensional sense of motion that sea-born creatures have.

Question

Quizplus · Accepted Answer

Motion sickness is thought to have evolved as a defense mechanism against neurotoxins. When the input from the vestibular system (which helps control balance and eye movements) and vision are incongruent, it can mimic the disorientation caused by poison ingestion. The body's response is to induce nausea and vomiting to expel the potential toxin.

Which of the Following Is an Evolutionary Explanation for the Development