What is a Spicule in a sponge?
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. What functions do a sponge spicules serve? spicules also serve…