All of the following are considered virulent factors in the Staphylococcus aureus EXCEPT:
A. Capsule
B. Lipid A
C. Protein A
D. Cytotoxins
E. Degradative enzymes
Ans: B. Lipid A
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A mutualism in each species can live without the other is termed a
A. facultative mutualism. B. obligate mutualism. C. definite partnership. D. dispersive mutualism. E. defensive mutualism.
Which of the following hormones is involved most directly in carbohydrate absorption?
1.gastrin
2.secretin
3.cholecystokinin
4.glucose insulinotropic peptide
The most accurate description of an organism
with genotype AaBb is a. homozygous dominant. b. heterozygous. c. heterozygous dominant. d. homozygous recessive. e. heterozygous recessive
When an earthworm is underground, which type of receptors will relay information on directional
movement? a. lateral line organs b. otoliths c. cristae d. stereocilia e. statocysts