Animals (Ctenophora and Cnidaria)

cnidocil

"trigger" for cnidocytes when moved, causes nematocyst to discharge

medusa and polyp

2 body forms of cnidarians

Hydrozoa, Scyphozoa, Cubozoa, Anthozoa

4 classes within Cnidaria

Portuguese man-of-war

4 types of polyp hydrozoans that live together to make this which people often think of as an organism

mesoglea

A jelly-like substance between the inner layer and outer layer of cells in a cnidarian

zooxanthellae

Algae that lives symbiotically with reef-building coral species . They use waste products from the coral to photosynthesize and in return, coral gets energy, and is able to build calcium carbonate reefs faster yellowish color

zoochlorellae

Any single green algae that lives symbiotically within the body of anthozoans greenish color

Cnidaria is diploblastic

Cnidaria is triploblastic or diploblastic

oral arms

Four long arms that extend from around the mouth/anus of a jellyfish and are used to collect food and move it into the mouth

acontia threads

Thread-like extensions of the lower ends of septal filaments into the gastrovascular cavity of some Anthozoa; bear cnidocytes and can be inverted to catch prey.

ephyra

Tiny medusa that comes off the polyp in reproduction develops into the mature medusa

symbiodinium

a dinoflagellate symbiosis with corals the coral gets a photosynthetic organism and the dinoflagellates get protection and a place to live

solitary

anemones are ___________ (colonial/solitary)

colloblast

cells that allow comb jellies to stick to their prey aka gluey cells

Cubozoa

class of box jellies in phylum Cnidaria

class Hydrozoa

class of hydras within phylum Cnidaria -reproduces asexually by budding -polyp and medusa

Anthozoa

class of sea anemones and corals in phylum Cnidaria no medusa form, only polyp colonial or solitary name means "flower animals" symbiotic relationships: zoochlorellae and zooxanthellae

class Scyphozoa

class of true jellyfish within phylum Cnidaria

box jellyfish

clear can see in Australia super dangerous - can kill people called "the most dangerous creature on the beach" in class Cubozoa in phylum Cnidaria

calcium carbonate (CaCO3)

compound that makes up the shell of corals

colonial

corals are ___________ (colonial/solitary)

gastrozoids

feeding polyps on a Portuguese man-of-war

nematophore

gas bag on Portuguese man-of-war full of air - helps it float

planula

larvae form of cnidarians motile ciliated

dactylozoids

long strings of polyps contain the nematocysts

aurelia

moon jelly real name

thread, bladder

nemato means, cyst means

nematocyst

organelle that houses the cnidocytes

Ctenophora

phylum of comb jellies name means "comb bearing" biradial symmetry lacking cnidocytes iridescence and bioluminescence move by ctenes found in benthic locations and some freshwater cannibalistic organism gif with deal w it

Cnidaria

phylum of hydras, corals, anemones, and jellyfish

zooplankton

refers to animals that drift through the ocean

gonozoids

reproductive polyps on a Portuguese man-of-war

ctene

row of microscopic fused cilia used for locomotion by comb jellies (Ctenophora) move like oars in a boat usually has 8 of these

cnidocytes

stinging cells located on tentacles

manubrium

term referring to the general structure in the center of the jellyfish where the mouth hangs down

endoderm and mesoderm

the 2 germ layers that cnidarians produce

strobila

the asexually reproductive polyps formed on the scyphistoma repetition of units

scyphistoma

the fixed polyplike stage in the life cycle of a jellyfish, which reproduces asexually by budding (strobilation). developed from Scyphozoa planular larva feeding stage

bioluminescence

the production of light by means of a chemical reaction in an organism

iridescence

the quality of exhibiting rainbow-like colors, brilliant appearance

pedal disc

the structure in polyp cnidarians that allows it to anchor to surfaces

Anthozoa

their GVC is divided into different areas by septa septa is the same idea as the septum we saw in Ascomycota and Basidiomycota these septa are also called mesentery

lappet

there are 8 of these on each ephyra Zanzot described them as "bilobed things" "fold/flap/dangly thingy"

evert

to turn inside out

biradial symmetry

type of symmetry where an organism has both bilateral symmetry and radial symmetry

ectoderm

what germ layer is the epidermis derived from in cnidarians?

endoderm

what germ layer is the gastrodermis derived from in cnidarians?