3.Cynthia has bacterial pneumonia. What type of cell may produce antibodies against the bacteria?
A. Chondrocyte.
B. Mast cell.
C. Lymphocyte.
D. Ciliated epithelial cell.
E. Macrophage
4.Hamish found an animal skull with very large canine teeth. What would be a likely diet of the animal?
A. Nuts.
B. Woody stems.
C. Meat.
D. Seeds.
E. Leaves.
6.Sierra analyzed her diet composition and found that its amino acid composition was in proportion to her body’s need for them. How would you characterize the protein in her diet?
A. Conditionally essential.
B. Trans.
C. Nonessential.
D. Complete.
E. Essential.
7.Kyla is studying the oxygen use by the livers of seals. She detected a 4 kPa partial pressure of oxygen in liver tissue fluid. What partial pressure of oxygen in a capillary would be required to allow a net inflow of oxygen into the liver fluid?
A. 3 kPa
B. 4 kPa
C. 2 kPa
D. 5 kPa
E. 1 kPa
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9.Kyla is studying the blood-gas levels of divers, and noticed that human brain function deteriorates when oxygen partial pressure falls below 2.5 kPa and seal brain function deteriorates when oxygen partial pressure falls below 1.3 kPa. Which of the following statements best explains this observation?
A. Seals can submerge for a longer time.
B. Seals have more myoglobin.
C. Seal tissues are tolerant of carbon-dioxide accumulation.
D. Seal tissues are more tolerant of oxygen-deprivation.
E. Seals divert blood to muscles.
10.If heart rate and output were constant, how might blood pressure be most strongly regulated?
A. Constriction of capillaries.
B. Constriction of capillary loops.
C. Constriction of arterioles.
D. Constriction of venules.
E. Constriction of endothelium
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