Which of the panels in the figure shows a movement called lateral flexion?
a) B
b) F
c) G
d) D
e) C
c
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Match the following:
A) Anaphase B) Late prophase C) Telophase D) Metaphase E) Early prophase 1) Chromosomes decoil to form chromatin. 2) Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell. 3) Nuclear membrane and nucleolus disintegrate. 4) Chromosomes align on the spindle equator. 5) Centrioles move to opposite ends of the cell.
What is the advantage of breathing through the nose rather than the mouth?
A) The nose warms, humidifies, and filters inhaled air. B) The nose provides a site for initial gas exchange. C) The nose is a less turbulent environment than the mouth. D) The nose provides a more direct route over which air will travel.
All microscope lenses should be cleaned with ________
A) lens paper B) tissue paper C) paper D) paper towels
When the kidney secretes hydrogen ions:
a. the pH of the urine rises b. sodium ions are added to the urine also c. the bicarbonate ion is added to the urine also d. none of the above