As a Result of His Experiments with Roosters, Berthold Concluded

question 39

Multiple Choice

As a result of his experiments with roosters, Berthold concluded that

• A) the testes secrete testosterone.
• B) the testes release a masculinizing chemical into the blood.
• C) hormones are important for homeostasis.
• D) castration has different effects in birds than in mammals.

---

Definitions:

Glaucoma

A group of eye conditions that damage the optic nerve, often associated with increased pressure within the eye.

Nausea

A sensation of discomfort in the stomach with an urge to vomit, often a symptom of various conditions.

Marijuana

A psychoactive drug from the Cannabis plant, used for medical or recreational purposes.

Opiates

Drugs derived from opium, typically used for their analgesic (pain-relieving) properties; can lead to dependence and addiction.