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Nula is conducting a study in which one group is exposed to loud music while completing a writing assignment and the other group has quiet conditions.Further,Nula examines the effect of gender within these groups.Therefore,she is examining the effects of both noise and gender on participants' performance on a writing task.Which of the following reflects the type of variables present in this study
Guard Cell
One of a pair of epidermal cells that adjust their shape to form a stomatal pore for gas exchange.
Companion Cell
A cell in the phloem of flowering plants that governs loading and unloading sugar into the sieve tube element for translocation.
Stem Apical Meristem
A region at the tip of a plant stem where cells are undifferentiated and capable of division, contributing to the lengthwise growth of the plant.
Lateral Meristems
Plant tissue responsible for growth in thickness or girth in a maturing plant, found in the cambium and producing cells that differentiate into various tissues.
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