They are called spiracles
A sponge's defenses are spikes in the sponges body.
The largest class of sponges is Demospongiae, which includes over 90% of all known sponge species. Their body type is typically characterized by a leuconoid structure, which consists of a complex network of canals and chambers that allows for efficient water flow and filtration.
palpate
Sponges have a single body cavity known as the spongocoel . The spongocoel is critical to the food gathering strategy of sponges.
endoskeletons
A network of spongin or spicules.
bone marrow
Sponges are invertebrates, meaning they do not have a spine. Sponges are soft fleshy animals that maintain their structure through the fibers in their body and water pressure.
Sponges have no proper body cavity or coelom. However, in the everyday sense of the expression, there is a cavity inside sponges, which is called a spongocoel.
Buds?
THe panda's structure is long hand and sharp teeth and hairay body
buds or budding
buds or budding
Rather than calling it as having segmented body, it is more apt to say they have poriferous body that is body with many pores. Sponges are collection of microscopic animals. The body of a sponge has two outer layers separated by an acellular gel layer called the mesohyl. The gel layer has calcium carbonate or spongin protein that gives it the rigid structure.
The epidermal cells of sponges are responsible for cell adhesion and maintenance of their shape and structure. The epidermis is composed of pinacocytes (epidermal cells) which are flattened cells in the sponge's body wall.
They are called accidentals.
A sponge's defenses are spikes in the sponges body.