Which of the following is true regarding hemoglobin?
a. It is a lipid.
b. It contains iron.
c. It raises the concentration of oxygen in the blood.
d. It is present in all vertebrates and invertebrates.
e. It is identical to hemocyanin.
ANSWER: b
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The sum total of behavior patterns of a social group, passed between generations by learning and symbolic behavior,
is ____. a. society b. folklore c. culture d. personality e. adaptation
Allopolyploidy is a significant factor in the evolution of:
a. bacteria. b. animals. c. protozoa. d. fungi. e. flowering plants.
Which of the following statements about treatment or prevention of a prion infection is true?
A) Antibiotic therapies such as penicillin are very effective cures. B) High doses of anti-inflammatory drugs such as ibuprofen reduce the symptoms of prion infections. C) Preventative vaccines have recently been shown to be effective in preventing prion infections. D) There is no known treatment or cure for prion infections.
The sebaceous glands associated with hair follicles produce ________
A) keratin B) sweat C) sebum D) androgens