This is a tiny fluid-filled cavity in the cytoplasm. it can be used for storage of biochemicals.

Vacuole

Explanation:

Vacuole is an membrane-bound organelle of the plants (some animals, fungi and some bacteria). This fluid-filled organelle contains organic and inorganic molecules, some of them are stored while others are phagocytized and  ready for the excretion. One of the most important function of the plant vacuole is the water storage. Filled with water, vacuole can create turgor pressure which can shape the cell and give it a straight.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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