Cell division resulting in two cells with the same number of chromosomes as the parent cell:a
mitosis d. divergent evolution
b. meiosis e. mutation
c. natural selection
A
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As air rises in the atmosphere it ____ and ____
a. compresses; warms b. expands; warms c. expands; cools d. compresses; cools e. warms; precipitates
Crude oil is ________
A) formed in a wide range of temperature and pressure circumstances B) fractionated to separate the chemicals used for gasoline, lubricants, plastics and other products C) formed less than 100 yards below the surface; in deeper places with more pressure, coal is formed D) usable in its raw form E) composed of less than ten different hydrocarbon molecules
Behavioral changes as an alternative to current pesticide use would NOT include
A. Switch to a herbicide tolerant GMO crop. B. Switching from monoculture fields to mixed polyculture fields C. Flooding fields before planting D. Habitat diversification E. Rotating crops
We lose 5 to 7 million hectares of productive cropland per year to ________
A) soil conservation efforts B) forest replanting and regeneration C) recreational land use D) soil degradation E) abandonment, feralization, and other factors