Oxygen in the presence of sunlight
Answer:
Explanation: Collenchyma cells are elongated cells with unevenly-thickened walls. They provide structural support, mainly to the stem and leaves.
"different ears"
According to <span>Broadbent's study, depending on which ear the stimulus was done, one of the channels were used. If both ears were used then there was a channel-swapping phenomenon that proved his theory of auditory attentional selection.</span>
