In a Test of the Effects of Cigarette Smoking on Physical

question 31

Multiple Choice

In a test of the effects of cigarette smoking on physical health and development,groups of monkeys were raised in either a smoke-free or smoke‑infested environment.Monkeys in the smoke-infested environment were assigned to the ________ group.

• A) correlational
• B) survey
• C) control
• D) experimental

---

Definitions:

ENG

Electronystagmography, a diagnostic test that records involuntary movements of the eye to evaluate the vestibular system.

Ossicles

The three small bones in the middle ear called the malleus, incus, and stapes, which transmit sound vibrations.

Anvil

A small iron block used in metalworking as a surface upon which metals are shaped.

Tympan

Another term for the tympanic membrane or eardrum, which vibrates in response to sound waves.