Which of these organs is NOT vestigial?

Correct option is B

The correct answer is (b) Brain.
· The brain is not a vestigial organ.
· It is a highly functional and essential organ responsible for controlling bodily functions, processing information, and enabling cognition and consciousness.
Information Booster:
· Ear muscles: Vestigial in humans; some animals use them to move their ears.
· Appendix: A vestigial organ that had a digestive function in ancestral herbivores.
· Wisdom teeth: Considered vestigial as they were useful for ancestors with diets requiring more chewing, but are often unnecessary and problematic in modern humans.