When the diaphragm contracts, the thoracic cavity ________, and you ________
A) gets smaller; exhale B) gets larger; exhale
C) gets larger; inhale D) gets smaller; inhale
Answer: C
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The purpose of the sex pilus is to ____
a. connect bacterial cells so a cytoplasmic bridge can form for conjugation b. form a gap junction between bacterial cells for conjugation c. facilitate cytoplasmic exchange d. enable bacteriophage infection e. lyse the cell
A slime layer gives bacterial cells greater pathogenicity than a capsule.
Answer the following statement true (T) or false (F)
A healthy young couple are both carriers of cystic fibrosis; the chance that each of their future children will inherit this serious illness is
a. 50%. b. 0%, because cystic fibrosis is not an inherited illness. c. 25%. d. More information is needed about the couple's parents and grandparents to determine probability. e. 100%, because both parents are identified as carriers of cystic fibrosis
The residual volume of the lungs is approximately
a. 1200 milliliters. b. 2000 milliliters. c. 4800 milliliters. d. 3800 milliliters. e. 5200 milliliters.