Which statement is true?
(a) Roots gain length primarily through cell division
(b) Roots gain length primarily through elongation growth
Ans: (b) Roots gain length primarily through elongation growth
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The oxic atmosphere created conditions that led to the evolution of various new metabolic pathways, such as
A) sulfide oxidation. B) nitrification. C) iron oxidation. D) sulfide oxidation, nitrification, and iron oxidation.
In muscle function at the sarcomere level, the formation of cross-bridges is regulated by the binding of ___ ions to ____.
A. calcium, troponin B. calcium, tropomyosin C. calcium, myosin D. sodium, troponin E. sodium, tropomyosin
Compare and contrast osmoregulation of freshwater fish and marine fish. What will be an ideal response?
A potential drug for the treatment of prion disease would be
a. a protease because prions are made only of protein. b. a ribonuclease because prions are made only of nucleic acid. c. a nucleoside inhibitor to prevent formation of new nucleotides. d. none of the above.