How many hydrogen bonds can a water molecule form?
A. 1
B. 2
C. 3
D. 4
E. 5
D. 4
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How does the metabolism occurring in chloroplasts differ from that of mitochondria?
A. Different proton sources B. Different electron sources C. Different electron acceptors D. Different electron acceptors and sources E. None of these answer options is correct.
For bacteriophage with +ssRNA as their genome, which type of nucleic acid is used as the template for the production of more genomic RNA?
A. dsDNA B. dsRNA C. -ssDNA D. -ssRNA
Potential evapotranspiration (PET) for a particular location is:
A) total annual precipitation B) total annual precipitation minus actual evapotranspiration C) total amount of water that could be evaporated from the soil and transpired by plants D) total amount of water that is actually evaporated from the soil and transpired by plants
Homeostasis
A) is the maintenance of a relatively constant internal state. B) results from hormone imbalance. C) occurs when the external environment changes to match the internal environment. D) is the way the internal environment influences the external environment.