How do the alternative and classical complement systems differ?
a) The classical requires B cell activation
b) The classical does not require B cell activation
c) The alternative requires B cell activation
d) The classical recognizes lipopolysaccharides without an antibody
Answer: a) The classical requires B cell activation
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What is the difference between genetic dissection and genome sequencing?
A) Genetic dissection reveals information about one gene at a time and genome sequencing reveals information about all the genes in a genome at once. B) Genetic dissection experiments can be accomplished in any species and genome sequencing is only possible in model organisms. C) Genetic dissection depends on the availability of mutations in model organisms and mutations are of no use in the study of genomes by genome sequencing. D) The genetic dissection approach is affordable and genome sequencing is prohibitively expensive.
At the arteriole end of the capillary, more fluid leaves the capillary than enters as a result of differences in:
a. plasma concentration b. vasoconstriction c. vasodilation d. blood pressure e. interstitial fluid osmotic pressure
During Krebs cycle reactions, the waste product gas ____________________ is produced. Fill in the blank(s) with the appropriate word(s)
Which of these studies is a meta-analysis?
A) a study that examined a link between nitrogen in the soil and yellowing of leaves B) a study that summarized research reports from many laboratories around the world indicating a relationship between a diet high in plants and colon cancer C) a study that reported on seed germination rates at many different temperatures D) a study that related transpiration rates in a number of different plants to weather conditions over many areas in North America