Clumping of antibodies and antigens is referred to as:
A) coagulation. B) antigen presentation.
C) agglutination. D) neutralization.
Answer: C
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Which of the following is classified as a synovial joint?
a. joints between teeth b. joints between vertebrae c. knee joint d. joints between skull bones
Scientists measured the pressure in the xylem of redwood trees at different heights and found that the higher they made their measurements, the lower the pressure. They extrapolated this to a pressure of zero, and concluded that the tallest a tree could grow is 122-130 meters. The tallest know tree on Earth is 112.7 meters. Which of the following most likely limits the height of trees?
A. the amount of transpiration in leaves B. the amount of photosynthesis in leaves C. the amount of energy needed to pump water to the tops of the trees D. the strength of water cohesion E. the ability to take up CO2
One of the best exercises for people with leg or foot problems is running.
a. true b. false
What are the two ways substances are removed from the blood and added to the forming urine?
A. glomerular secretion and tubular reabsorption B. glomerular filtration and tubular reabsorption C. glomerular filtration and tubular secretion D. tubular secretion and tubular reabsorption E. glomerular secretion and tubular secretion