In the shallow subsurface, surface waters often move through ________, which are porous geological structures below the plant root zone.

Fill in the blank(s) with the appropriate word(s).


aquifers

Biology & Microbiology

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Why might adding inorganic phosphate, to a reaction mixture where glycolysis is rapidly proceeding, help sustain the metabolic pathway?

A) It would increase the amount of glucose available for catabolism. B) It would increase the oxygen supply available for aerobic respiration because each phosphate group contains four oxygen atoms as constituents. C) The metabolic intermediates of glycolysis are phosphorylated. D) It increases the energy level of the electrons that are transferred to the electron transport chain where ATP is produced.

Biology & Microbiology

A researcher runs a BLAST program comparing turkey phenylalanine hydroxylase, which functions in the metabolism of phenylalanine, with known database sequences. Which of the following should provide the closest match?

A. green pufferfish B. zebrafish C. chicken D. orangutan E. fruit fly

Biology & Microbiology

Which of the following statements accurately describes the Calvin cycle?

A) It is a carbon assimilation process. B) In this process, carbon dioxide is reduced to organic sugars. C) It occurs in the chloroplast stroma. D) The Calvin cycle is a means of carbon fixation. E) all of the above

Biology & Microbiology

The anatomical structure identified with the

letter "D" in the figure above is the a. myocardium. b. pulmonary veins. c. inferior vena cava. d. right atrium. e. heart apex

Biology & Microbiology