Final answer:
The guiro is a percussion instrument made from a hollow gourd with slits, played with a wooden stick.
Step-by-step explanation:
The percussion instrument made from a hollow gourd with an open end, parallel slits cut in the gourd on one side, and played with a wooden stick is called a guiro.
The guiro is a traditional Latin American instrument that produces sound when the stick is rubbed along the slits on the gourd's surface.
It is commonly used in various genres of music, including salsa, merengue, and Latin jazz.
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