Which force is responsible for moving water up to the tops of the trees?
A. transpiration
B. root pressure
C. atmospheric pressure
D. water stress
E. guttation
Answer: A
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Which of the following is an example of post-translational modification? (Select all correct choices)
A. Digestive proteins are translated into inactive forms that can be activated at a later time and/or in a different place. B. Chaperone proteins help newly translated proteins achieve the appropriate tertiary structure. C. Proteins are modified by the replacement of one or more amino acids by sugars, which may then target the protein to a specific cell compartment.
Which of the following statements is true regarding subduction?
A. It adds new crust to Earth's surface via volcanic activity. B. It is unrelated to Earth's plate tectonics. C. It permanently removes carbon from Earth's surface. D. It permanently adds carbon to Earth's atmosphere. E. The carbon it removes is eventually returned to the atmosphere by volcanism.
Y-linked traits are ____
a. known as homozygous traits b. known to skip generations in males c. carried only by males and transmitted only to males d. carried only by females, but are never expressed e. passed on to only 50% of female progeny
In order to reproduce sexually, diploid cells must produce ________ gametes through ________.
A. haploid; mitosis B. triploid; mitosis C. haploid; meiosis D. diploid; meiosis E. diploid; mitosis