_____________ results in the oxidation of NH3 to form NO3-, and _______________ relies on the reduction of NO3- to form N2
A. Anammox; nitrogen fixation
B. Nitrogen fixation; anammox
C. Denitrification; nitrogen fixation
D. Nitrification; nitrogen fixation
E. Nitrfication; denitrification
F. Denitrification; nitrification
E
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The formation of a D-loop is associated with which of the following models of recombination?
A. Double-stranded break model B. Holliday model C. Single-stranded break model
Lamellipodia
A) are found in the basal lamina. B) add structural rigidity to cells. C) contain microtubules. D) are thin sheets of cytoplasm use for cell movement. E) do not involve actin or tubulin.
The molecule in the accompanying figure is the pyrimidine ____, which is typically found in both DNA and RNA
a. thymine b. adenine c. uracil d. guanine e. cytosine
Natural selection should favor the highest proportion of juxtamedullary nephrons in which of the following species?
A) a river otter B) a mouse species living in a tropical rain forest C) a mouse species living in a temperate broadleaf forest D) a mouse species living in a desert