What determines the direction of gas movement in the body?
A.) differences in partial pressures in two areas
B.) pH
C.) temperature
D.) differences in particle size
Ans: A.) differences in partial pressures in two areas
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Which of the cell adhesion molecules is critical to transducing changes in the ECM to a change in the cell?
A. connexins B. cadherins C. integrins D. fibronectins E. claudins
Explain the difference in meiotic products that arise from a meiosis in which nondisjunction occurs
during the first division and a meiosis in which nondisjunction occurs during the second division.
What will be an ideal response?Which of the following is true about an ATP
bound myosin molecule?
a. it is in a high energy state b. it is in a low energy state c. it is in a cross-bridge state with actin d. the myosin binding site is open e. more than one of these is true
A(n) ____ allows two rival males to assess one another’s strengths without engaging in a potentially damaging fight
a. conditioned stimuli b. eusocial response c. instinctive behavior d. kinetic movement e. threat display