The release of most nitrogen oxides comes from ____

a. ammonia-oxidizing bacteria
b. the use of DDT
c. coal-burning power plants
d. drilling for gasoline and oil
e. combustion of gasoline and oil


ANSWER: e

Biology & Microbiology

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In humans, straight thumbs are caused by the dominant allele T, while individuals who are tt have thumbs that curve backward ("hitchhiker's thumb")

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What is the correct order of gene expression in the early Drosophila embryo?

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Which of the following is the primary role of modern zoos in conservation efforts?

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