Podcast
Questions and Answers
What is the meaning of Porifera?
What is the meaning of Porifera?
- Simple, ancient animals
- Organisms with shells
- Multicellular organisms
- Organisms with holes (correct)
Which structure in sponges allows water to exit the central cavity?
Which structure in sponges allows water to exit the central cavity?
- Osculum (correct)
- Spicule
- Amebocytes
- Collar cells
What is the function of Amebocytes in sponges?
What is the function of Amebocytes in sponges?
- Move water containing food in their pore and out a large hole
- Digest food particles & contain flagella
- Form the simple skeleton
- Build spicules, digest food, & transport particles (correct)
What is the main characteristic of sponges' body form?
What is the main characteristic of sponges' body form?
What are spongin fibers in sponges made up of?
What are spongin fibers in sponges made up of?
Study Notes
Porifera
- Porifera means "pore-bearing" in Latin, describing the porous nature of sponges.
Sponges' Structure
- The osculum is the structure in sponges that allows water to exit the central cavity.
Amebocytes
- Amebocytes are cells in sponges that have the ability to change shape and are responsible for carrying out various functions such as capturing food particles, moving, and reproducing.
Body Form
- Sponges are characterized by a unique body form that is attached to one place, sedentary, and has a porous, sac-like shape.
Spongin Fibers
- Spongin fibers in sponges are made up of collagen protein.
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Description
Test your knowledge of Porifera, Coelenterata, and Mollusca phylum with this quiz. Explore the similarities and characteristics of these invertebrate animals, including sponges, jellyfish, and mollusks.