Currently, atmospheric CO2 levels are approximately 400 ppm. The annual mean growth rate in CO2 is about 2 ppm/year. Assuming this trend continues, what would you predict the CO2 level to be in 100 years?

A) 100 ppm
B) 200 ppm
C) 600 ppm
D) 1,000 ppm


Answer: C

Biology & Microbiology

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Eukaryotic and archaeal cells are able to regulate cellular processes at which of the following levels?

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Among the dihybrid crosses below, which will produce offspring with a 1:1:1:1 genotypic ratio?

A) AA BB × aa bb B) Aa Bb × Aa Bb C) Aa Bb × aa bb D) Aa BB × aa BB E) AA bb × aa BB

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Today, we are in the ________ geologic era.

A. Paleozoic B. Cenozoic C. Precambrian D. Mesozoic

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The inheritance of human traits is predictable because the genes controlling them exhibit the principles

of both ____________________ and ____________________. Fill in the blank(s) with the appropriate word(s).

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