Systemic lupus erythematosus (SLE or lupus) is distinct from other autoimmune disorders because
A. it is also a hypersensitivity disorder.
B. it involves an antibody response.
C. multiple organs and tissues are affected.
D. it may be triggered by an infection.
E. there is a genetic predisposition.
Answer: C
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A. bacteroids; ammonia B. bacteroids; nitrogen C. bacteroids; phosphorus D. root hairs; nitrogen
Which level of taxonomy encompasses all of the others?
a. family b. class c. order d. species e. genus
Four of the five features listed below are found in
sponges. Select the exception. a. mesoglea b. spicule c. gemmule d. flagellated collar cells e. amoeboid cells
What is the maximum number of electrons in a shell?
a. 0 b. 2 c. 6 d. 8 e. 12