All of the following are true of lignins EXCEPT that they ____
a. are formed by an algae combined with a fungus
b. protect cellulose from microbial attack
c. can be 10 to 30% of plant tissue
d. act as a structural component
A
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How is plugging accomplished with three phase motors?
What will be an ideal response?
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In an inductive AC circuit, when the applied voltage is at its maximum negative value, the current is _____.
a. zero b. increasing toward maximum positive c. at the maximum negative value d. at the maximum positive value
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A(n) ____________________ is a flow-directing valve.
Fill in the blank(s) with the appropriate word(s).
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In China and Southeast Asia, ____________________ and ____________________ make up a large part of the overall diet
Fill in the blank(s) with correct word
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