Posted: August 5th, 2016

The receptors for vision, hearing, and taste are specialized cells separated from sensory neurons by synapses.

1. The sense of pain hinders, rather than helps, survival.
True
False
5 points
Question 16
1. Alcohol, tranquilizers, and barbiturates are depressants.
True
False
5 points
Question 17
1. The receptors for vision, hearing, and taste are specialized cells separated from sensory neurons by synapses.
True
False
5 points
Question 18
1. Most mammals experience REM sleep.
True
False
5 points
Question 19
1. Sensation occurs when energy in the external environment or in the body stimulates receptors in the sense organs.
True
False
5 points
Question 20
1. When sleep researchers have studied humans and other species, they found that only the higher mammals, such as humans, great apes, and bottlenose dolphins experience REM sleep.
True
False