0
no
LIE
they do
What else can I help you with?
What is a digestive system with only one opening called?
A digestive system with only one opening is called an incomplete digestive tract. Organisms with this type of digestive system ingest food and eject waste through their mouth.
What is the digestive system for phylum porifera?
Sponges have a cavity lined with specialized cells that absorb the food that enters or is swept in by cilia. Not very complex.
What is the structure and function of the porifera digestive system?
The digestive system of porifera, also known as sponges, is simple and lacks specialized organs. They have pores through which water enters, bringing in food particles. The food is then digested by specialized cells called choanocytes, and waste is expelled through the same pores. This process helps sponges obtain nutrients and remove waste from their bodies.
How do sponges carry out essential body functions?
Sponges carry out essential body functions through simple diffusion. They do not have a circulatory, respiratory, or digestive system. Nutrients and oxygen diffuse directly into their cells from the surrounding water, and waste products are expelled in the same way.
What are are not part of sponges?
Sponges, belonging to the phylum Porifera, do not have true tissues or organs, which differentiates them from more complex animals. They lack a nervous system, digestive system, and circulatory system, relying instead on the flow of water through their porous bodies for nutrient intake and waste removal. Additionally, sponges do not possess specialized structures like fins, limbs, or a centralized body plan, which are found in many other animal groups.
Do porifera have digestive cavity or digestive tract?
Sponges have flagellated cells over the surface of their bodies, these are cells that have tails that wiggles. The collective effort of all these cells creates a water current through the many porous openings in the sponges body. It is a water based circulatory system.
How are worms and sponges different?
Worms are multicellular organisms belonging to the animal kingdom, while sponges are multicellular organisms belonging to the animal phylum Porifera. Worms have bilateral symmetry and a digestive system, while sponges lack symmetry and have a porous body structure supported by spicules or spongin fibers.
Do sponges have blood?
Sponges do not have blood. They do not have a circulatory system either.
Is it true that sponges can eat kelp?
No, sponges do not eat kelp. Sponges are filter feeders that obtain their nutrients by filtering small particles, such as plankton and bacteria, from the water. They do not have a digestive system to consume larger organisms like kelp. Instead, they rely on the flow of water through their porous bodies to capture microscopic food sources.
What do sponges lack that make them more primitive and simpler?
Just finshed it on a test. Sponges lack a digestive track, symmertical plan, and nerce cells.
What body system does the intestines belong to?
The body system that the colon belongs to is the digestive system. The colon is also known as the large intestine.
Do sea sponges poop?
Not in the traditional sense, no. Sea sponges do not have digestive systems. Instead, they rely on the flow of the water they inhabit to obtain nourishment and to rid them of wastes.
