Multiple choice

Which of the following characteristics are true regarding wool fibers?

  1. Surface scales may be visible

  2. Flat hose appearance

  3. Bamboo stick appearance

  4. May have surface spots, stains, pits

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wool is an animal fiber, and under a microscope, it typically shows overlapping surface scales. Other options describe characteristics of synthetic or plant-based fibers.