The immune complexes that are not removed by macrophages are:
A. intermediate sized
B. very small
C. large
D. all of the above
Answer: A. intermediate sized
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The ability to process information from the environment _______________
A. is a trait unique to multicellular organisms B. is a trait unique to eukaryotes C. requires a brain and spinal cord D. is characteristic of all types of organisms E. is unique to primates
When the electrons from reduced cofactors are transferred to oxygen in mitochondria, the process is coupled to the formation of _______ molecules of ATP.
a. 2 b. 10-12 c. 22-24 d. 32-34
The Most Probable Number (MPN) method is used
A) to estimate numbers of cells in samples with a high density of bacterial cells. B) when samples contain obligate anaerobes. C) to estimate numbers of cells in samples with a low density of bacterial cells. D) to isolate autotrophic bacteria. E) to determine the generation time of bacterial isolates.
The organisms that most specifically utilize light energy to make organic molecules from inorganic molecules are
A. photohemitrophs. B. heterotrophs. C. photoisotrophs. D. photoautotrophs. E. photoheterotrophs.