Sponge Canal Systems

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What is the function of ostia in sponges?

To remove wastes from the sponge

To provide structural support to the sponge

To generate a flow of water

To bring in food and oxygen (correct)

Which structure in sponges is responsible for the exit of water?

Collagen fibers

Mesohyl

Spicules

Oscula (correct)

What is the purpose of the unique water current system in sponges?

To aid in feeding and gas exchange (correct)

To assist in reproduction

To provide shelter for other marine organisms

To regulate the sponge's body temperature

Which component forms the stiffening skeletal structure of sponges?

Spicules Signup and view all the answers

What do sponges lack compared to more complex metazoans?

Germ layers Signup and view all the answers

What is the term for the clusters of cells surrounded by a protective coat that are involved in asexual reproduction in sponges?

Gemmules Signup and view all the answers

Which type of stem cell in sponge embryos is considered totipotent and can potentially give rise to an entire organism?

Archeocytes Signup and view all the answers

During sponge embryonic development, what is the term for the stage where the zygote does not form a gastrula blastula?

Hollow stage Signup and view all the answers

Which type of cell in adult sponges produces a few cell types like sclerocytes and germ cells but not an entire organism?

Archeocytes Signup and view all the answers

Which type of larva is released into the water during sponge sexual reproduction before eventually settling and undergoing metamorphosis?

Planktonic larva Signup and view all the answers

What is the term for the process of fertilization, followed by release of a planktonic larva and its eventual settlement and metamorphosis in sponges?

Sexual reproduction Signup and view all the answers

Sponge Canal Systems

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Questions and Answers

What is the function of ostia in sponges?

Which structure in sponges is responsible for the exit of water?

What is the purpose of the unique water current system in sponges?

Which component forms the stiffening skeletal structure of sponges?

What do sponges lack compared to more complex metazoans?

What is the term for the clusters of cells surrounded by a protective coat that are involved in asexual reproduction in sponges?

Which type of stem cell in sponge embryos is considered totipotent and can potentially give rise to an entire organism?

During sponge embryonic development, what is the term for the stage where the zygote does not form a gastrula blastula?

Which type of cell in adult sponges produces a few cell types like sclerocytes and germ cells but not an entire organism?

Which type of larva is released into the water during sponge sexual reproduction before eventually settling and undergoing metamorphosis?

What is the term for the process of fertilization, followed by release of a planktonic larva and its eventual settlement and metamorphosis in sponges?

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