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A laboratory tool for transferring liquids.

An organ, usually in male animals, used for sex, to carry sperm, and to urinate.

Organisms found in water that provide an important source of food to many small and large aquatic organisms, such as bivalves, fish and whales.

A prism is a transparent solid body, often having triangular bases, used for dispersing light into a spectrum or for reflecting rays of light.

A medical specialty dealing with the diagnosis and treatment of mental disorders. Psychiatrists are physicians who can prescribe medicine and perform certain medical treatments. 

A type of depression that many parents experience after having a baby.

A disposable plastic tip for pipettes.

Quarter To

Quarter To (used in a sentence)

A quantity is a measurable property of an object or collection of objects.