__________ and __________ are single-celled

heterotrophs with a secreted shell. Fill in the blank(s) with the appropriate word(s).


Answer: Foraminiferans;radiolarians

Biology & Microbiology

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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

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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.

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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

Biology & Microbiology

What is the force that drives continental drift?

a. Subduction zones b. Seafloor spreading c. Fraction zones d. Magma convection

Biology & Microbiology