Which of the following statements about acid precipitation is false?
a. It can decrease soil pH.
b. It is implicated in forest decline.
c. It drops sulfuric and nitric acids on the Earth.
d. It is caused by human activities.
e. It prevents the leaching of essential cations
E
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Creative destruction explains the deindustrialization Detroit, Milwaukee, Cleveland and Buffalo
Indicate whether this statement is true or false.
In transcription, RNA polymerase binds to a
__________ in the DNA near a gene, and then assembles a strand of RNA. Fill in the blank(s) with the appropriate word(s).
Which of these are the smallest of veins that form when capillaries merge?
A) venules B) arteries C) arterioles D) veins
Clonal selection
A) determines the pool of mature leukocytes that will be stimulated by macrophages. B) requires the activation of natural killer cells. C) describes the proliferation of B and T lymphocytes after they have been activated by an antigen. D) requires the presence and activation of complement.