Poriferans

Poriferans, also known as sponges, are simple aquatic animals that belong to the phylum Porifera. They are the most primitive and simplest form of multicellular animals. Sponges can be found in a variety of aquatic environments, including freshwater and marine habitats. They come in a wide range of shapes, sizes, and colors.

Characteristics of Poriferans:

• Poriferans have a porous body structure, which gives them their name.
• They lack true tissues and organs, and their bodies are organized at the cellular level.
• They have a water filtration system through which they obtain food and oxygen.
• Poriferans are sessile, meaning they are attached to a surface and do not move around.

Study Guide:

Here are some key points to remember about poriferans:

1. What is another name for poriferans?

Answer: Poriferans are also known as sponges.

2. Where can poriferans be found?

Answer: Poriferans can be found in various aquatic environments, including freshwater and marine habitats.

3. What is the body structure of poriferans like?

Answer: Poriferans have a porous body structure.

4. How do poriferans obtain food and oxygen?

Answer: Poriferans have a water filtration system through which they obtain food and oxygen.

5. Are poriferans able to move around?

Answer: No, poriferans are sessile, meaning they are attached to a surface and do not move around.