Biological and behavioral changes around a 24 hour period defines a: A.: A. circadian rhythm.
People who are active and alert during the morning hours but become drowsy in the afternoon and
evenings are called: A.: B. larks.
The opposite of a lark is
DNA contains the bases adenine, guanine, cytosine, and thymine. In RNA thymine is replaced by:
Correct Answer: D. uracil.
All somatic cells in the human body contain _ chromosomes.
Correct Answer: D. 46
Cells that contain two complete sets of chromosomes
One solution to the mind/body problem proposes that there is only one underlying
reality; mind or body. This solution is called:
Correct Answer: C. monism.
Modern psychobiologists who subscribe to the belief that all thought and action is
The two major divisions of the vertebrate nervous system are the _ and _ nervous systems.
Correct Answer: C. peripheral; central
Nerves that activate the skeletal muscles form part of the _ nervous system.
Correct Answer: D. somatic
The brain and spinal c
The typical cell membrane resting potential is:
Correct Answer: B. -70 millivolts.
Ions important for establishing the membrane resting potential are:
Correct Answer: D. All of the answers are correct.
When a neuron is at rest, there is a greater concentr
The study of the effects of drugs on behavior is called:
Correct Answer: B. psychopharmacology.
The study of how drugs move through the body, including absorption, distribution, and elimination is termed:
Correct Answer: A. pharmacokinetics.
The conversion of physical energy into a neural impulse is called:
Correct Answer: A. transduction.
The three basic functions of all sensory receptors are: absorption, transduction, and:
Correct Answer: C. coding.
The process that allows us to distinguish
Frequency of a sound wave is perceived as:
Correct Answer: B. pitch.
The amplitude of a sound wave produces the perception of:
Correct Answer: A. loudness.
The purity of sound is produced by its:
Correct Answer: B. timbre.
The greater the amplitude of a s
Skeletal muscles are attached to bones by:
Correct Answer: C. tendons.
Movement away from the body is produced by:
Correct Answer: C. extensor muscles.
Muscles that work in opposition to each other are called:
Correct Answer: C. antagonistic muscles.