________ is a phenolic plant hormone and plays a role in plant growth as well as plant defense.
Fill in the blank(s) with the appropriate word(s).
Salicylic acid
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What is a standard output voltage of potential transformers?
a. 12V b. 24V c. 120V d. 240V
In a traditional carpentry apprenticeship program, the total number of OJL hours required is _____.
a. 500 b. 2,000 c. 4,000 d. 8,000
Technician A says that the metal brake fluid reservoir found on older vehicles requires the top to be removed to check fluid level. Technician B says that when filling a brake fluid reservoir to leave room for expansion due to heat. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
The difference between residential heating and cooling systems and commercial/industrial heating, cooling, or refrigerating facilities is:
A) The size of the building or facility. B) The amount of energy the building or facility uses. C) Whether the equipment or system is in a home or in a business. D) The number of people that occupy the building or facility.