Question

select the beaker.
work it out
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identify laboratory tools (100)

Explanation:

A beaker is a common laboratory glassware with a cylindrical shape, a flat bottom, and a pouring lip. The first image matches this description. The second image is a volumetric pipette, used for measuring precise volumes. The third image is a graduated pipette, also for measuring volumes but with markings along its length.

Answer:

The first image (the cylindrical container with volume markings and a pouring lip) is the beaker.