Calcareous
Sponge: Calcareous Sponges reproduce asexually by regeneration and through the
process of budding. Both are a type of reproduction that results in a genetic
clone. In the case of budding, the sponges produce a cluster of cells known as
a gem mule that is covered in a hard coating, which keeps the offspring
protected from harsh weather as well as climate changes. Regeneration is the
ability of a sponge to grow a totally new and complete adult from a small piece
of the adult sponge that has been torn loose.