Which of the following types of skin damage are the most superficial?
A) second-degree burns B) first-degree burns
C) third-degree burns D) All of these have the same level of pain.
Answer: B
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A protein is made up of
(a) amino acid units. (b) one or more sugar units. (c) lipid droplets. (d) Biuret solution.
Which one of the following statements about Chlamydia and Chlamydophila spp. is false?
A) They are obligate intracellular pathogens. B) They are considered to be “energy parasites.” C) The diseases they cause are all arthropodborne. D) They are considered to be Gram-negative bacteria.
Of the enzymes associated with the metabolism of lactose with the lac operon, the one associated with transport of lactose into the cell is
A) ?-galactosidase. B) transacetylase. C) galactoside permease. D) ?-lactase. E) lactose translocase.
Which of Lamarck's ideas was the least influential to Darwin’s evolutionary theory?
a. Species change through time. b. New characteristics are passed from one generation to the next. c. Organisms change in response to their environment. d. Acquired characteristics are passed on from parents to offspring. e. Specific mechanisms exist that foster evolutionary change.