A gorilla encounters a frightening stimulus; its first reactions may include a sudden jump followed by immobility. It may also display _____, meaning that its body hair stands on end; this makes the animal look bigger and more threatening.
A) sphincter control
B) piloerection
C) goosebumps
D) bladder control

Question

Quizplus · Accepted Answer

Piloerection is the term used to describe the phenomenon where body hair stands on end, which can make an animal appear larger and more threatening. This is a common response in many animals, including humans, when frightened or cold, known colloquially as "goosebumps" in humans.

A Gorilla Encounters a Frightening Stimulus; Its First Reactions May