Cnidarian And Ctenophora Cards

Front 1

What cells aid in movement; can contract, extend, bend, or pulse the body or tentacles of the organism

Back 1

Epithiliomuscular cells

Front 2

The sensory structures used for balance and orientation

Back 2

Statocysts

Front 3

A type of cnidarian nervous system

Back 3

Nerve net

Front 4

Oval shaped animals with paddle-like hairs that shimmer with rainbow colors

Back 4

Comb jelly

Front 5

What is the motile stage of a jellyfish

Back 5

Planula

Front 6

What are the most common cnidae

Back 6

Nematocysts

Front 7

What is another name for the gastrovascular cavity

Back 7

Coelenteron

Front 8

Class name describing cup animals that live mostly in the Medusa stage

Back 8

Class scyphozoa

Front 9

What is the process in which a polyp can produce many medusae

Back 9

Strobilation

Front 10

What is the outer cell layer of an adult cnidarian

Back 10

The epidermis

Front 11

Type of asexual reproduction in which knobs of tissue form on the side of an existing polyp

Back 11

Budding

Front 12

What is the extra cellular matrix that acts like glue between the two body layers

Back 12

Mesoglea

Front 13

What is the term referring to a native organism restricted to a certain country or area

Back 13

Endemic

Front 14

What is the nematocysts sensor which triggers the Filament to pop out

Back 14

Cnidocil

Front 15

What are the cnidarian stinging cells called

Back 15

Cnidocytes

Front 16

What organism is nicknamed for “Chironex Fleckeri”

Back 16

Sea wasp

Front 17

Corals use these small organisms to supplement their nutrition

Back 17

Zooxanthellae

Front 18

What is the adjective used to describe animals that prefer open water

Back 18

Pelagic

Front 19

What is the inner cell layer of an adult cnidarian

Back 19

Gastrodermis

Front 20

What is the adjective used to describe animals that prefer substrate (bottom) environments

Back 20

Benthic

Front 21

A blind gut which has a single exterior opening that serves as both the mouth and the anus

Back 21

Gastrovascular cavity

Front 22

What is the term used for animals that are not colonial but instead live as individual polyps

Back 22

Zooid

Front 23

What is the body form of free-swimming jellyfish

Back 23

Medusa

Front 24

What is the term referring to organisms with two different body forms

Back 24

Dimorphism

Front 25

What is the hydroid body form

Back 25

Polypn

Front 26

What is the type of asexual reproduction in which an individual divides in half as one side of the polyp pulls away from the other side

Back 26

Fission

Front 27

What are some examples of the predators of jelly fish

Back 27

Sea turtles, sea slugs, ocean sunfish, and blanket octopus

Front 28

Radiate animals have how many cell layers

Back 28

Two

Front 29

These “flowers of the sea” form symbiotic relationships with clown fish and hermit crabs

Back 29

Sea anemone

Front 30

Process in which corals become stressed, usually due to warmer water temps, and expel their algae

Back 30

Bleaching

Front 31

Sea anemones have what kind of symmetry

Back 31

Radial

Front 32

What are the immature, eight-armed, free-swimming medusae formed from strobilation

Back 32

Ephyrae

Front 33

What are the sensory structures used for light reception

Back 33

Ocelli

Front 34

What are the four horse shoe shaped structures of a moon jelly

Back 34

Gonads

Front 35

The mouth side of a cnidarian is called its______

Back 35

Oral surface

Front 36

The side opposite of its mouth is its____

Back 36

Aboral surface

Front 37

Coral reefs require what kind of waters

Back 37

Polar, tropical, deep, and shallow

Front 38

What class does box jelly fish belong

Back 38

Class cubozoa

Front 39

What class does corals and sea anemones belong in

Back 39

Class anthezoa

Front 40

What class do true jellyfish belong in

Back 40

Class Scyphozoa

Front 41

What class does the portuguese man of war belong too

Back 41

Class hydrozoa

Front 42

What class do “cup animals” belong too

Back 42

Class scyphozoa

Front 43

What class do “sea serpent animals” belong too

Back 43

Class hydrozoa

Front 44

What throat adaptation allows sea turtles to swallow jelly fish

Back 44

They have adapted backward pointing spines throughout their mouth and throat

Front 45

Why doesn’t a sea turtles throat gets stung when eating a jelly fish

Back 45

Because of the papillae that line the turtles esophagus

Front 46

What does diploblastic mean

Back 46

Develop from only two embryonic cell layers

Front 47

Cnidarians do not have a brain, what do they have. What does it help them do

Back 47

They have a nerve net; it helps them respond to stimuli and coordinate activities like feeding and traveling

Front 48

There are four classes of cnidarians

Back 48

Class scyphozoa, class cubozoa, and class hydrozoa, and class anthenozoa

Front 49

What is the most diverse group with siphonophores

Back 49

Class hydrozoa

Front 50

Anthozoa has three subclasses , what are they

Back 50

Hexacorallia: hard corals

Ceriantipatheria: thorny corals

Octocorallia: horny corals