Rheumatoid arthritis in an _____ that affects the _____.
A) allergy, cartilage
B) immunodeficiency disease, muscles
C) autoimmune disease, nerves
D) autoimmune disease, joints
Ans: D) autoimmune disease, joints
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Which of the following carbon reservoirs contains the most carbon?
a. atmosphere b. biomass on land c. lakes d. oceans e. soil
RNA molecules that also act as enzymes are given the name
A. ribozymes B. cofactors C. coenzymes D. allosteric enzymes
In the cyclic electron pathway of the light reactions, electrons energized by the sun leave photosystem I and enter
What will be an ideal response?
What causes the inactivation of a G protein?
A. The alpha subunit hydrolyzes GTP to GDP and inorganic phosphate. B. The beta and gamma subunits trigger the hydrolysis of GTP to GDP. C. A phosphatase removes the inorganic phosphate group from GTP. D. The inactive receptor catalyzes the replacement of GTP by GDP.