One Monkey in a Community Throws a Sand and Wheat

question 23

Multiple Choice

One monkey in a community throws a sand and wheat mixture into water to separate the wheat grains from the sand. The spreading of this strategy through the entire community of monkeys demonstrates

• A) a stereotypic behavior.
• B) imprinting.
• C) behavior with an ultimate cause.
• D) a pheromone-influenced behavior.
• E) culture.

---

Definitions:

Parasympathetic

The part of the autonomic nervous system that conserves energy by slowing the heart rate and increasing digestive activities.

Gonads

Sex glands; secrete hormones that regulate sexual development and behavior as well as reproduction.

Sex Glands

Organs that produce sex hormones and gametes, such as ovaries in females and testes in males.

Cortisol

A steroid hormone released in response to stress and low blood-glucose concentration, involved in metabolism and immune response.