Perfect Porifera
All Things Cnidarian
Review on Coral Reef
Whole Lotta Taxa
Picture Me
100

The main body cavity of a sponge.

What is the spongocoel?
100

Cnidarians have this type of symmetry.

What is radial symmetry?

100

This type of coral is the ecosystem engineer of the coral reef ecosystem because they secrete calcium carbonate.

What is stony coral (Order Scleractinia)?

100

This class contains the deadliest cnidarians (can kill a human in 2-5 minutes).

What is Class Cubozoa?

100

The horseshoe-shaped structures on the aboral side of this organism.


What are gonads?

200

Cells in a sponge that are responsible for creating the water current and capture food.

What are choanocyte (collar) cells?

200

The stinging structures that are housed in cnidocytes in the tentacles of cnidarians.

What are nematocysts?

200

This photosynthetic organism has a mutualistic symbiotic relationship with coral by providing oxygen, sugars, and lipids to the coral.

What are zooxanthellae (dinoflagellates)?

200

Almost all of the species of this phylum are capable of bioluminescence.

What is Phylum Ctenophora?

200

The term that best describes a colonial organism with both medusa and polyp forms.

What is a siphonophore?

300

The body plan of this sponge


What is asconoid?

300

The body cavity in cnidarians that is where digestion occurs.

What is the gastrovascular cavity?

300

A major cause of death in corals that is caused by climate change-induced increases in ocean temperatures.

What is coral bleaching?

300

This taxonomic class of Porifera has examples of all three sponge body plans.

What is Class Calcarea?

300

This organism's method of movement.

What are cilia?

400

The support elements in a sponge that are used in species identification.

What are spicules?

400

The term for the new medusa that are produced through strobilation during the life cycle of scyphozoans.

What is ephyra?

400

This type of reef runs parallel to the shore with a wide and deep lagoon in between.

What is a barrier reef?

400

This order of cnidarians contains solitary polyp form organisms that attach to structures using a pedal disk.

What is Order Actiniaria?

400

The adhesive-producing structures in the tentacles of this organism.

What are colloblasts?

500

This species of sponge is often gifted as a symbol of eternal love in Japan.

What is Euplectella aspergillum (Venus' flower basket)?

500

Soft corals in Subclass Octocorallia communicate through these gastrodermal tubes.

What are solenia?

500

The term for organisms that sexually reproduce and have separate sexes.

What is dioecious?

500

This order of cnidarians contains colonial organisms composed of a primary polyp with no tentacles and secondary polyps branching off with specialized functions.  

What is Order Pennatulacea?

500

The name of the structure that produces new medusa during strobilation.

What is a scyphistoma?

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