What is the result when airborne sulfur and nitrogen oxides coat dust particles?
a. wet acid deposition
b. dry acid deposition
c. a chemical reaction that produces sulfuric and nitric acids
d. wet acid deposition and increased soil pH when dust settles
e. dry acid deposition and reduced soil pH when dust settles
e
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Refer to the paragraph on the Venter et al. paper and the table above. What practical applications for human society may arise first from this or similar metagenomic studies?
A) New genes with useful properties may be identified and ultimately put to use. B) New microbial species could be isolated from seawater. C) An increased knowledge of the diversity of marine ecosystems could lead to investigations of diversity in other ecosystems. D) Species discovered in the Sargasso Sea may also be found to inhabit less-remote waters.
True or false: Because water is so abundant on Earth, oxygen and hydrogen make up a majority of the known matter of the universe
A. true B. false
Sensory signals, other than olfactory, are routed through the thalamus which serves as a clearinghouse, sorting signals and sending them to which part of the brain?
a. medulla b. cerebellum c. cerebral cortex d. Broca’s area
Respiration is a physiological process by which O2
enters the internal environment and CO2 leaves by diffusing across a __________. Fill in the blank(s) with the appropriate word(s).