The addictive chemical in cigarettes is
A) menthol. B) nicotine. C) tar. D) carbon monoxide.
B
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Indicate which of the following statements is false. (Select all that apply.)
a. Immunoglobulin heavy- and light-chain loci are encoded on the same chromosome. b. Light chains contain V and J segments, whereas heavy chains contain V, D, and J segments. c. The V? gene segments are duplicated in about 50% of the human population. d. All immunoglobulin loci include a leader sequence. e. On the heavy-chain locus, V rearranges to D first, and then J joins the combined VD sequence. f. Immunoglobulin heavy-chain loci undergo two rounds of somatic recombination, whereas light-chain loci undergo only one.
In humans, phytonutrients seem to have a powerful ability to
a. protect the skin from the powerful sunlight. b. block the formation of cancerous tumors. c. supply sufficient amount of vitamins. d. provide energy for normal body function.
Osteopathic medicine is the type of health care offered in most physician offices and hospitals in the United States and Canada.
Answer the following statement true (T) or false (F)
According to the news clip on Dance Dance Revolution (DDR), all of the following are benefits of DDR EXCEPT
A) it is cost-effective. B) it improves children's blood pressure scores. C) it burns calories. D) regular use improves academics.