What structure carries manufactured sugars from the leaves down to the roots?
A) xylem
B) phloem
C) nodes
D) buds
B
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Answer the following statement(s) true (T) or false (F)
Normally open switches are drawn with the movable contact above and touching the stationary contact.
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The tensile strength rating of steel usually exceeds yield strength by:
A. 10 percent B. 25 percent C. 50 percent D. 100 percent
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Noncondensable gases have a negative effect on system performance because, if not removed, they will migrate to the condenser coil. This leads to a number of problems. List six such problems.
What will be an ideal response?
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What is the origin of the variety in the properties of polyurethanes?
What will be an ideal response?
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