The skeleton of sponges is in the form of various needle like structures called?
Correct answer: D. Spicules
- A. Stipules
- B. Brails
- C. Spines
- D. Spicules
Explanation
Spicules are the structural components of a sponge, or the "bricks," and the shapes, sizes, and composition are unique for each species. Together, you can look at these features under a microscope to make a positive identification. Spicules are composed of either Calcium or Silica.
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