______ is a vestigial hollow tube that is closed at one end and is attached at the other end to the cecum, a pouch-like beginning of the large intestine into which the small intestine empties its contents.
Appendix
The correct answer is Appendix.
The description provided in the question accurately identifies the appendix as the vestigial hollow tube attached to the cecum. While the appendix is often cited as a classic example, it's important to note the evolving understanding of its potential minor roles. Other examples of structures often considered vestigial in humans include the coccyx (tailbone), wisdom teeth, and arrector pili muscles (causing goosebumps). Understanding these structures helps us appreciate the evolutionary history of the human body.
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