__________ and __________ are single-celled
heterotrophs with a secreted shell. Fill in the blank(s) with the appropriate word(s).
Answer: Foraminiferans;radiolarians
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What is the force that drives continental drift?
a. Subduction zones b. Seafloor spreading c. Fraction zones d. Magma convection
Which of the following is the correct path in the endomembrane system for a protein synthesized on a ribosome attached to the rough ER?
a. rough ER ? smooth ER ? Golgi complex ? plasma membrane b. rough ER ? vesicle ? smooth ER ? plasma membrane c. rough ER ? vesicle ? lysosome ? plasma membrane d. rough ER ? Golgi complex ? vesicle ? plasma membrane
Which of the following statements is TRUE concerning diphtheria?
A) No effective vaccine is available to prevent infection. B) A diffuse rash is the major sign of diphtheria. C) The signs and symptoms of the disease are directly caused by a bacterial toxin. D) The pseudomembrane is easily removed by surgery. E) A microscopic exam of bacterial samples is sufficient for conclusive diagnosis.
Which of the following methods would surgical staff use to disinfect surfaces in operating rooms?
A) x-ray radiation B) autoclaving C) ionizing radiation D) gamma ray radiation E) non-ionizing radiation