Porifera/Cnidaria Flashcard REMEDIATION

Front

What are spicules?

Back

Spicules are the hard 'skeleton' structures found in sponges, providing support and protection.

Front

What phylum do jellyfish belong to?

Back

Jellyfish belong to the phylum Cnidaria.

Front

What type of symmetry do Cnidarians exhibit?

Back

Cnidarians exhibit radial symmetry, meaning their body parts are arranged around a central axis.

Front

What are the two forms of Cnidarians?

Back

The two forms of Cnidarians are the medusa (free-swimming) and the polyp (sessile).

Front

Describe the digestive tract of Cnidarians.

Back

Cnidarians have an incomplete digestive tract, consisting of only a mouth and an internal cavity.

Front

What is the main characteristic of the phylum Porifera?

Back

The main characteristic of Porifera is that they are porous animals, commonly known as sponges.

Front

How do sponges obtain food?

Back

Sponges obtain food through a process called filter feeding, where they filter water to extract nutrients.

Front

What is the role of amebocytes in sponges?

Back

Amebocytes are cells in sponges that play a role in digestion, nutrient transport, and waste removal.

Front

What is the significance of cnidocytes in Cnidarians?

Back

Cnidocytes are specialized cells in Cnidarians that contain stinging structures called nematocysts, used for capturing prey.

Front

What is the habitat of most Cnidarians?

Back

Most Cnidarians are found in marine environments, although some can also be found in freshwater.