Factors contributing to desertification in the Sahel include all of the following except
A) deforestation and overgrazing.
B) population increases.
C) southward expansion of desert conditions following persistent drought.
D) lack of a regional environmental policy.
E) northward shift of the ITCZ.
Question 2
The hot desert climates occur
A) only in areas under the influence of a rain shadow.
B) in the tropics and subtropics.
C) along the midlatitude, west coasts of continents.
D) in polar regions.
E) only in midlatitude rainshadow positions.
Reprogramming Factors in stem cells
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Major regulatory factors controlling pyruvate dehydrogenase and the citric acid cycle