Quiz 2 Cnidaria/Ctenophores

Question 1

Define dimorphic

Answer 1

two body forms

Question 2

Which animal group is dimorphic

Answer 2

cnidarians

Question 3

Two body types of cnidarians

Answer 3

medusa and polyp

Question 4

What is planktonic

Answer 4

in the water column with movement subject to ocean currents

Question 5

what is pelagic

Answer 5

living in the open ocean

Question 6

what are the specialized cells on cnidarians

Answer 6

cnidocytes

Question 7

What do cnidocytes contain

Answer 7

nematocysts

Question 8

examples of class Hydrozoa

Answer 8

Hydra, Obelia, Man of War, Fire Corals, and “Friends”

Question 9

dominant form in hydrozoa

Answer 9

polyp

Question 10

what hydrozoan has two polyp types

Answer 10

obelia

Question 11

Obelia feeding function polyp

Answer 11

gatrozooids/hydranths

Question 12

Obelia asexual reproduction polyp

Answer 12

gonozooids/gonangium/a

Question 13

What symmetry do cnidarians have

Answer 13

radial symmetry

Question 14

Classes of cnidarians

Answer 14

hydrozoans, scyphozoans, anthozoans

Question 15

dominant form in scyphozoans

Answer 15

medusa

Question 16

Amount of mesoglea in hydrozoans

Answer 16

little

Question 17

amount of mesoglea in scyphozoans

Answer 17

a lot

Question 18

life cycle of scyphozoans

Answer 18

planula larva, scyphistoma, strobila, ephyra

Question 19

In aurelia, what do marginal tentacles do?

Answer 19

sensory information and defense and locomotion

Question 20

In aurelia, what do oral arms do

Answer 20

defense and prey capture

Question 21

In aurelia, what do gonads do

Answer 21

organs for sexual reproduction

Question 22

In aurelia, what is gastric pouch for

Answer 22

one of four divisions of the GVC for digestion of food

Question 23

In aurelia, what does the rhopalium do

Answer 23

sensory organ, little divots in the side of the jelly

Question 24

In aurelia, what does the gastric canal do

Answer 24

extension of gastric pushes that distribute nutrients to outer rim of jellyfish

Question 25

Examples of scyphozoans

Answer 25

Aurelia, mangrove jelly

Question 26

Examples of anthozoans

Answer 26

hard corals, sea pansies, sea fans, sea whips, sea anemones

Question 27

Only stage present in anthozoans

Answer 27

polyps

Question 28

anthozoans solitary polyp example

Answer 28

sea anemone

Question 29

anthozoans colony of similar polyps

Answer 29

sea whips, sea fans

Question 30

anthozoans colony of polymorphic polyps

Answer 30

sea pansy

Question 31

anthozoan anamone mouth function

Answer 31

ingestion and egestion

Question 32

anthozoan anamone pharynx function

Answer 32

muscular part of cavity ingesting and egesting

Question 33

anthozoan anamone septum function

Answer 33

division, support, and increased surface area for digestion

Question 34

anthozoan anamone pedal disc function

Answer 34

attaches organism to substrate and some locomotion

Question 35

anthozoan anamone tentacle functiond

Answer 35

defense and prey capture

Question 36

comb jellies use what to move

Answer 36

ctenes

Question 37

how to ctenophores capture their prey

Answer 37

with colloblast cells with sticky mucus