What would be the result(s)if a hemichordate's pharyngeal gill slits were suddenly blocked?

Name: What would be the result(s)if a hemichordate's pharyngeal gill slits were suddenly blocked?
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Question

Quizplus · Accepted Answer

Hemichordates use their pharyngeal gill slits for both respiration and feeding. Blocking the slits would therefore result in both respiratory and feeding issues. There is no evidence to suggest that hemichordates use their gill slits for seeing, so option C is not a likely outcome.

What Would Be the Result(s)if a Hemichordate's Pharyngeal Gill Slits