1100 Biology: Coelenterates

TRUE or FALSE: The term Coelenterata means "pore bearing"

• TRUE, it means "pore-bearing"

• FALSE, it means "hollow-intestine"

Which among the following belongs to the phylum Coelenterata?

• Sharks

• Sea anemones

• Jellyfishes

• Sponges

• Corals

This body form in coelenterates attaches its base into some object on the ocean floor.

• Medusa

• Polyp

• Hydra

This body form in coelenterates resembles an umbrella with snakelike tentacles streaming down like hair.

• Medusa

• Polyp

• Hydra

This outer layer of the cell is responsible for forming contracting fibers which is essential for movement/swimming.

• Ectoderm

• Endoderm

• Mesoglea

This inner layer of the cell is responsible for breaking down food nutrients, absorbing oxygen and removing waste products.

• Ectoderm

• Endoderm

• Mesoglea

TRUE or FALSE: The mesoglea is located between the endoderm and ectoderm in coelenterates .

• TRUE, the mesoglea is located between the endoderm and ectoderm.

• FALSE, the mesoglea is located above the endoderm and ectoderm.

The stinging cells in coelenterates function as:

• A means of defense

• An accessory

• A way to capture prey

• A means to swim freely

TRUE or FALSE: The stinging cells of coelenterates contain a sac and a thread called nematocyst.

• TRUE, it is called a nematocyst

• FALSE, it is called a barb

Coelenterates capture their prey using their:

• Mouth

• Tentacles

• Gastrovascular cavity