Malia reacts to something without a message reaching her brain. What must be true? A This reaction was not controlled by the nervous system. B This reaction was only controlled by the central nervous system. C This reaction was not controlled by neurons. D This reaction was a reflex.

Health · High School · Thu Feb 04 2021

Answered on

Here, option (D) is correct.

This quick response is called a reflex, and reflexes occur without conscious thinking or planning, meaning the brain is not involved in them.