Antibody titer can be measured by

A) negative microscopy.
B) agglutination.
C) plate counts done after isolating the pathogen.
D) polymerase chain reaction.


Answer: B

Biology & Microbiology

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Which of the following are characteristics of biomes? Check all that apply.  

_____  A biome is a large geographical area with distinctive plant and animal groups.  _____  Biomes are only located at certain longitudes and latitudes. _____  The climate and geography of a region determines what type of biome can exist in that region. _____  Each biome consists of only one type of ecosystem. _____  Temperate evergreen forest is one of the major biomes.

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Each year, plants and algae remove approximately ________ of the CO2 in the atmosphere.

A. half B. 1/7th C. 1/50th D. 100%

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Which of the following would be most effective in reducing the amount of CO2 in the atmosphere?

A) cyanobacteria B) anaerobic microbes C) heterotrophic organisms D) fungi E) nitrogen fixers

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During cellular respiration, what molecule collects the majority of the electrons from the food that we eat?

A) CO2 B) glucose C) ATP D) NAD+ E) FAD+

Biology & Microbiology