At times when Earth’s climate was cooler than it is today, the polar ice caps ____, rainfall ____, and sea levels ____
a. retreated; increased; rose
b. retreated; decreased; fell
c. grew larger; increased; fell
d. grew larger; increased; rose
e. grew larger; decreased; fell
ANSWER: e
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Steroid and peptide hormones typically have in common _____
A) the building blocks from which they are synthesized B) their solubility in cell membranes C) their requirement for travel through the bloodstream D) the location of their receptors E) their reliance on signal transduction in the cell
Which of the following methods can be used to determine the position of nucleosomes in the genome?
A. RNA-Seq B. Western blotting C. ChIP-Seq D. epigenetic immunoprecipitation E. immunofluorescence
The balance between photosynthesis and ________ is altered by the combustion of fossil fuels.
A. respiration B. decomposition C. sunlight D. growth
How did the earliest single-celled microorganisms produce energy to drive metabolic processes?
A. Sulfuric acid, aerobic, and anaerobic respiration. B. Sulfuric acid respiration. C. Both aerobic and anaerobic cellular respiration. D. Aerobic cellular respiration. E. Anaerobic cellular respiration.