During which phase of the general adaptation syndrome is there a collapse of vital systems?
A) alarm phase
B) resistance phase
C) exhaustion phase
D) complications phase
E) adjustment phase
Answer: C
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The shock-absorbing pads between the vertebrae are formed of fibrocartilage
Indicate whether the statement is true or false
A molecule with unequal electron distribution of bonding electrons is said to be ____________________
Fill in the blank(s) with correct word
Skeletal muscle can be tetanized; can heart muscle also be tetanized? Why or why not?
A) Yes, extrasystoles are evidence of tetanus. B) Yes, all muscle can be tetanized. C) No, heart muscle does not show summation and tetanus because of the long refractory period of cardiac muscle cells.
Most transmembrane proteins have ________ regions facing the intra- and extracellular fluid, and ________ regions embedded in the phospholipid bilayer.
A. hydrophobic; hydrophobic B. lipophilic; lipophobic C. hydrophilic; hydrophilic D. hydrophobic; hydrophilic E. hydrophilic; hydrophobic