According to Fick's law of diffusion, the rate of diffusion of a gas across a tissue is directly proportional to the
A. diffusion coefficient of the gas.
B. difference in partial pressure of the gas on the two sides of the tissue.
C. tissue area.
D. all of these answers are correct
Answer: D
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Neurons in area LIP, buried in the intraparietal sulcus, fire when an animal remembers the position of a target stimulus to which it will subsequently make a saccade. These neurons are implicated in working memory
Indicate whether this statement is true or false.
Which of the following explain why infections with influenza virus erode immunological memory over time? (Select all that apply.)
a. Influenza is a highly mutable virus that changes its epitope composition. b. A compensatory immune response to new epitope variants is suppressed in naive B cells. c. The antibody response is directed only toward new epitope variants, resulting in a decreased memory response. d. Cross-linking of B-cell receptor and Fc?RIIB1 on memory B cells induces anergy. e. Naive B cells are suppressed by cytokines made by memory B cells.
Alcohol stimulates central nervous system functions
Indicate whether the statement is true or false