With increasing altitude, air density ________
Fill in the blank(s) with correct word
decreases
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Which of the following is true concerning a lysogenic viral replication cycle?
a. During lysogeny, the viral DNA is present as a circular plasmid. b. During lysogeny, the viral genome integrates into the host DNA, becoming a physical part of the chromosome. c. Once the lysogenic portion of the cycle has begun, virus is never produced again. d. Lysogenic infections are similar to persistent infections, in that virus is constantly produced.
True or false: Sterile saline has sterilizing effects on the skin.
What will be an ideal response?
A decrease in cell adhesion by the introduction of cytochalasin to a tissue compromises the structural integrity of the tissue. Which junctional complexes would be affected by this treatment to cause the decrease in the strength of the tissue?
A. adherens junctions B. desmosomes C. hemidesmosomes D. tight junctions
At the level of the cell, how is osmoregulation achieved?
A. by the movement of solutes across membranes B. by balancing the input and output of water and electrolytes C. by changing the overall permeability of membranes D. by bringing water in through the skin E. None of these choices accurately describe how osmoregulation is achieved at the level of the cell.