What Are Sponge Invertebrates? Sponges are simple invertebrate animals that live in aquatic habitats. Although the majority of sponges are marine, some species live in freshwater lakes and streams. They are found in shallow ocean environments to depths as great as five kilometers (km). How are sponges different other invertebrates? Sponges are similar to other
What Animals Have Spicules? Spicules: structural elements found in most sponges that provide structural support, like a skeleton. Spicules can be made of silica or calcium carbonate. Do other animals have spicules? Spicules, which are present in most but not all species, may be made of silica or calcium carbonate, and vary in shape from
What Is Sponge Symmetry? Sponges have asymmetrical symmetry. When an animal’s body shape is asymmetrical, there is no axis or line that can be drawn where it is essentially… What is the characteristic body shape of a sponge symmetry? The simplest body structure in sponges is a tube or vase shape known as “asconoid”, but