The photoreceptors that allow for an individual's black-and-white vision are known as ________

Fill in the blank(s) with correct word


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Biology & Microbiology

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The total magnification achieved in the laboratory when using the high-power (high-dry) objective of the compound light microscope is:

A) 40×. B) 100×. C) 400×. D) 1,000×.

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Phagocytosis leads to destruction of engulfed pathogens by which of the following mechanisms?

A. Complement fixation B. Lysosomal-mediated hydrolysis C. Production of bacteriocins D. All of the choices are correct.

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The function of which of the following organelles directly requires oxygen?

A. Ribosome B. Mitochondrion C. Nucleus D. Centriole E. Golgi apparatus

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A chemist adds a chemical to pure water and there is a 100-fold increase in the concentration of hydrogen ions. What is the best approximation of the new pH value?

A. 9 B. 0 C. 7 D. 5 E. 14

Biology & Microbiology