Which of these BEST describes the potential role of telomeres in the aging process?
A. They are the packets of fuel that feed each cell.
B. They are "glue" that binds together the base pairs of DNA molecules.
C. They are a portion of a chromosome that gets shorter until DNA replication is no longer possible.
D. They are the scrubber cells that clear all debris from our arteries.
Answer: C
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Superior colliculus is to ____ as inferior colliculus is to ____.
A. vision; hearing B. taste; smell C. vision; touch D. touch; hearing
At the age range of 3 to 5 years, sexuality education should focus on ____
a. the roles of family members, the development of a positive self-image, and an understanding that living things grow, reproduce, and die b. information on plant and animal reproduction, gender similarities and differences, growth and development, and self-esteem c. biological topics such as the endocrine system, menstruation, masturbation and wet dreams, sexual intercourse, birth control, abortion, self-esteem, and interpersonal relationships d. increasing knowledge of contraception, intimate sexual behavior (why people do what they do), dating, and variations in sexual behaviors (homosexuality, transvestism, transsexualism)
Baby Paul's mother strokes his hair just before he eats. Now when Paul's mother strokes his hair, Paul begins to suck. The stroking is the __________, and the taste of milk is the __________
A) conditioned stimulus; neutral stimulus B) unconditioned stimulus; conditioned stimulus C) neutral stimulus; unconditioned stimulus D) neutral stimulus; conditioned response
When alcohol is abused, the resulting effects may include:
a. blackouts, cirrhosis of the liver, mental and neurological impairment, psychosis, and possibly death. b. an increased risk of bladder cancer. c. loss of appetite, nausea, constipation, withdrawal symptoms, and possibly death. d. damage of dopamine cells in the brain.