Which antibody makes up most of the
immunoglobulins in blood?
a. IgG
b. IgA
c. IgD
d. IgM
e. IgE
Answer: a
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In a nucleotide, the pho'sphate is attached to the ____________ carbon of the sugar, and the base is attached to the ____________ carbon of the sugar
A. 1'; 5' B. 2'; 3' C. 3'; 5' D. 5'; 1' E. 5'; 3'
The slow drifting of sections of the earth's crust, sometimes separating, other times colliding, is known as ________.
A. plate tectonics B. crust dynamics C. continental divergence D. continental convergence
The anthropoids of the Oligocene lived in
a. hot, dry deserts. b. grassy savannas. c. tropical rainforests. d. the watery swamps. e. cool and pleasant mountains.
A(n) ________ is composed of one sugar (deoxyribose or ribose), one phosphate, and one nitrogenous base
Fill in the blank(s) with correct word