Most vertebrates maintain homeostasis in regard to the total solute concentrations of their extracellular fluids and the concentrations of specific inorganic ions. The kidneys participate in regulating the extracellular fluid concentration of all ions below EXCEPT
A. Ca2+ ions.
B. K+ ions.
C. Cl- ions.
D. Na+ ions.
E. Fe2+ ions.
E. Fe2+ ions.
Biology & Microbiology
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An animal cell that is hypertonic will likely do which of the following?
a. Shrivel b. Burst c. Remain stable d. Lyse
Biology & Microbiology
Which of the following is NOT a risk factor for lung cancer?
a. smoking b. asbestos exposure c. radiation d. exposure to industrial chemicals e. regular exercise
Biology & Microbiology
Which microscope is best used for observing the surfaces of intact cells and viruses?
A) phase-contrast microscope B) darkfield microscope C) fluorescence microscope D) brightfield microscope E) scanning electron microscope
Biology & Microbiology
Which group is NOT a domain in the tree of life?
a. Viruses b. Bacteria c. Archaea d. Eukarya
Biology & Microbiology