Cnidaria General Characteristics
What type of symmetry do Cnidarians have?
Radial Symmetry
Immature jellyfish form by what, and eventually break off from polyp?
Budding
When does coral tend to feed?
At night time
What is an example of Hydrozoa?
Oblelia
Most have what to get food?
Long tentacles
A network of nerve cells and receptor cells contained within a simple nervous system.
Nerve Net
Their life cycle allows them to go through what types of reproduction?
Sexual, and Asexual
what is one of the two types of fish that can lie amongst the sea anemones' tentacles?
Clown Fish, and Some Shrimps
What do Hydrozoa normally live in?
Colonies
Most of these do not what? (it is a defense mechanism)
Sting
What do they use to bring food to their mouth for ingestion?
Tentacles
The Umbrella-shaped structure with tentacles hanging down from it? (All Contain This)
Medusa
what retreats inside the polyp when touched
tentacles
Individual Polyps function together as a what?
Individual Hydroid
They usually are located where?
Floating near the surface
What are the names of the inner, middle, and outer layers of cnidarians
inner- gastrodermis, middle- mesoglea, outer- epidermis
What type of cells moved trapped plankton into the mouth?
Ciliated Cells
Sea Anemones normally are? (their type of movement)?
Sessile
What is a different name for a Portuguese man-of-war?
Physalis
There are how many rows of long fused cilia?
Eight
Name three of the four animals that are included in the Phylum Cnidaria.
Jellyfish, coral, sea anemone, hydra
What is the class that contains jellyfish?
Scyphozoa
What is the class that contains Sea Anemones/ Coral?
Class Anthozoa
the reproduce like jellyfish except that what is the dominant stage?
Polyp
What makes up Phylum Ctenophora?
Comb Jellies