Poriferans & Cnidarians

Body plan of an organism that can be divided along any plane, through a central axis, into roughly equal halves

Body plan of an organism that can be divided into 5 equal parts

Body plan of an organism that can be divided down its length into right and left halves that form mirror images

minuscule pores present on the body walls of sponges; water also goes through them

Individuals who possess both male and female reproductive organs

These are specialized cells found in sponges that help in creating water currents for filter feeding; collar cells; also has a flagella

nervous tissue around margin of float

structures that assist in balance in jellyfish

eyespots in Cnidarians; phototrophic meaning they detect and go towards light

where digestion takes place in a cnidarian;

skeletal support of CaCO3 in a sponge

large opening on top of sponge where water exits

digest food, move betwen 2 cell layer to take nutrients, produces gametes

underide of float surrounding mouth

body form of a Hydra

umbrella-shaped body form of a Cnidarian

stinging cells containing cnidocil

trigger which release toxin to paralyze prey

These are specialized cells found in the tentacles of cnidarians, such as jellyfish and sea anemones. They contain venomous threads used for defense and capturing prey.

They diffuse the air into themselves, and other existing materials diffuse out

asxeual bud on a sponge

concentration of nervous tissue at the anterior region of the body (if have a brain or a head) Cnidarians have neither

attached at a base that remains until physically moved

old name for Phylum Cnidera

Crabs & Sponges, Amoeba & Clownfish, coral polyps & green algae

1250 miles

80,000 miles sq.

Where is the Great Barrier Reef

What makes up the Great Barrier Reef?

Another name for Portuguese-Man-Of-War

2 tentacles reaching for food

What animal consumes the Portuguese-Man-Of-War

Pneumatophore, Dactylazoids, Gastrazoids, Gonozoids

the float in the Portuguese-Man-Of-War

stinging cells on the tentacles of the Portuguese-Man-Of-War

feeding polyps on the Portuguese-Man-Of-War

job is reproduction in the Portuguese-Man-Of-War

“comb jellies” that move by Ctenes

tiny cillia that has 8 rows on the jellyfish that move to make the jellyfish swim; bioluminescent

in a mutualistic relationship with Portuguese-Man-Of-War; it lures prey towards the Portuguese-Man-Of-War’s tentacles0

type of sponge

Organism with multiple heads and tentacles, found in freshwater and marine environments; Capable of regenerating lost body parts

true jellyfish, has a painful but not deadly sting

have mutualistic relationship with clownfish; stings predators that touch it

built the Great Barrier Reefs; grows by making new coral onto dead skeletal coral

in the box jellyfish family;

most dangerous/deadly invertabrate; in the box jellyfish family

What is the color of dead sea coral?

Water goes through the Ostia, and the oxygen is diffused to a lower concentration

They diffuse the air into themselves, and other existing materials diffuse out

How do sponges reproduce?

Water and other materials enter through the ostia

old name was Coelenterate; 3 cell layers, small amount of nervous tissue, mouth is only opening, 2 body plans (Medusa & Polyp)

Sponges, 2 tissues, no nervous tissue, evolutionary dead end, hermphrodites

What are the 3 classes of Phylum Cnidera

Ex: Hydra. Portuguese-Man-Of-War, both Polyp and Medusa

Coral & Sea Anemones, Polyps only

true jellyfish, medusa only

close to shore (2-20 miles) grows by continuously forming over dead coral

completely surrounds an island, leaving a lagoon, grows by continuously forming over dead coral

farther from shore (20-200 miles from land). grows by continuously forming over dead coral

What is the larval form of all cnidarians called?

Who swam from Cuba to Florida?