Why are pigs used in medical research for products that will eventually be used for humans?
What will be an ideal response?
Pigs are the closest to humans in terms of digestive, circulatory, and other systems. Skin tissue from pigs can be used to replace badly burned human skin, and valves from the hearts of pigs can be used to replace human heart valves.
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On a horse, the area directly between and behind the ears is known as the ____________________.
Fill in the blank(s) with the appropriate word(s).
Determine the voltage gain v?/vi of the op amp circuit in Fig. 5.67.
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Mechanical seals are classified by _____
a. size and configuration b. arrangement and design c. operating temperature and configuration d. industry and sector
Problem 1.23 Link AB, of width b = 2 in. and thickness t = 14 in., is used to sup¬port the end of a horizontal beam. Knowing that the average normal stress in the link is ?20 ksi and that the average shearing stress in each of the two pins is 12 ksi determine (a) the diameter d of the pins, (b) the average bearing stress in the link.
