Stem girdling in trees is a problem because:
A) the xylem is crushed so transpiration stops.
B) it weakens the stem causing it to break.
C) the stem is wrapped too tightly and cannot respire.
D) carbohydrates cannot get to the roots.
D
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a. pipe diameter in inches b. type of fluid carried by the pipe c. specifications book reference number d. pipe number within the piping system
Which of the following consists of two parallel channels connected by rungs?
a. Ladder tray b. Center-rail tray c. Trough tray d. Solid-bottom tray
What condition is indicated by blown off tips on fuel injectors?
A. Engine overheating. B. Water contamination in fuel. C. Engine backfires caused by poorly adjusted timing. D. Pre-detonation.
One of the symptoms of heat stroke is _____
a. the body temperature drops by several degrees b. cool, pale, and moist skin c. extremely high body temperature d. heavy sweating