Who were the first scientists to discover abscisic acid, and what material was used for purification?
What will be an ideal response?
Addicott (United States) used cotton abscission as an experimental system, and
Wareing (England) used dormancy in birch trees as an experimental system.
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En ubicaciones peligrosas donde se requieren tuberĂas elĂ©ctricas de metal trenzado, las uniones deben estar compuestas de al menos______roscas completamente acopladas.
a. 1 b. 3 c. 5 d. 10
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Describe a digital input.
What will be an ideal response?
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There are _____ bones in the horse skeleton.
a. 105 c. 315 b. 205 d. 500
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In most reach-in coolers the evaporator fan and condenser fans are three-phase motors
Indicate whether the statement is true or false
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