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Front

What is the osculum in sponges?

Back

The osculum is a large exit opening in sponges that allows water to exit after passing through internal canals.

Front

How do sponges primarily obtain food?

Back

Sponges primarily obtain food through filter feeding using specialized cells called choanocytes.

Front

What types of habitats do sponges and cnidarians occupy?

Back

Sponges and cnidarians can be found in both marine environments and some freshwater habitats.

Front

What is a key characteristic of scyphozoans?

Back

Scyphozoans can rest inverted yet still maintain their medusa form.

Front

To which class do hydra belong?

Back

Hydra belong to the class Hydrozoa.

Front

What is the function of spicules in sponges?

Back

Spicules provide structural support and protection for sponges.

Front

What are choanocytes?

Back

Choanocytes are specialized cells in sponges that help in filter feeding by creating water currents.

Front

What distinguishes Hydrozoa from other cnidarian classes?

Back

Hydrozoa are characterized by their life cycle that includes both polyp and medusa forms.

Front

What is a nematocyst?

Back

A nematocyst is a stinging capsule found in cnidarians used for capturing prey.

Front

What is the primary mode of reproduction in sponges?

Back

Sponges primarily reproduce asexually through budding, but they can also reproduce sexually.