Have an account?
Skip to Content
Build your own quiz
Suggestions for you
.png)
40 questions
Show Answers
See Preview
- 1. Multiple Choice
What is the name of the jelly matrix of a Cnidarian?
epidermis
calyx
mesoglea
epiglea
- 2. Multiple Choice
This picture is which of the two main body forms of a Cnidarian?
polyp
zooanthellae
larvae
medusa
- 3. Multiple Choice
The Cnidarian nervous system is very simple. Instead of a developed brain with a complex nervous system they have a:
nerve net
nerve circle
brain net
nerve polyp
- 4. Multiple Choice
Organisms that produce both male and female gametes are called:
trioecious
dioecious
monoecious
bioecious
- 5. Multiple Choice
What is the name of the stinging cells from which this phyla gets its name?
cnidogametes
cnidocytes
cnidogemmules
cnidoecious
- 6. Multiple Choice
This picture is which of the two main body forms of a Cnidarian?
polyp
gemmule
medusa
larvae
- 7. Multiple Choice
Which Cnidarian class contains the box jellyfish?
Anthozoa
Cubozoa
Scyphozoa
Hydrozoa
- 8. Multiple Choice
What is the name of Cnidarian larva?
pupa
pupae
planula
plastron
- 9. Multiple Choice
What Cnidarian class contains true corals, sea anemones, and sea pens?
Anthozoa
Cubozoa
Hydrozoa
Scyphozoa
- 10. Multiple Choice
What is the most abundant of the freshwater Cnidarians?
box jellyfish
hydra
coral
anthozoa
- 11. Multiple Choice
What has a mutualistic relationship with coral and lives within its tissues?
small fish
larvae
hydra
zooanthellae
- 12. Multiple Choice
Which Cnidarians have the most economic importance to humans?
sea anemones
jellyfish
reef-building corals
sea pens
- 13. Multiple Choice
Which class of Cnidarians contains Hydra, and Portuguese Man-of-War?
Hydrozoa
Anthozoa
Cubozoa
Scyphozoa
- 14. Multiple Choice
Cnidarians have what type of gastrovascular cavity, or coelenteron?
closed gut
complex gut
formed gut
blind gut
- 15. Multiple Choice
Cnidarians are most abundant in what type of environment?
warm, polar, deep marine environments
warm, tropical, shallow marine environments
cold, polar, shallow marine environments
cold, tropical, deep freshwater environments
- 16. Multiple Choice
Through what process does a polyp produce medusae?
fission
budding
strobilation
zooid
- 17. Multiple Choice
What is the name of the organelle of Cnidarians that contains a tiny, coiled, tubular filament?
nematocyst
nematoblast
cnidariacyst
cnidariablast
- 18. Multiple Choice
What class of Cnidarians contains the true jellyfish?
Cubozoa
Anthozoa
Hydrozoa
Scyphozoa
- 19. Multiple Choice
The skeleton, and the calyx, of corals is made out of what substance?
silica
calcium carbonate
silica carbonate
phosphorous
- 20. Multiple Choice
What phylum do comb jellies belong in?
Cnidaria
Porifera
Chordata
Ctenophora
- 21. Multiple Choice
Which pylum: stinging cells, many have zoozanthellae living symbiotically
Cnidaria
Echinodermata
Chordata
Mollusca
- 22. Multiple ChoiceWhen light hits a jellyfish, it responds to the stimuli using its _______________.BrainSkin CellsEpidermisNerve Net
- 23. Multiple ChoiceOrganisms in Phylum Cnidaria and Phylum Ctenophora have what kind of symmetry?AsymmetryBilateralRadialColateral
- 24. Multiple ChoiceWhat trait gives jellies in the Phylum Ctenophora their common name?Box shapeCombsTentaclesPolyps
- 25. Multiple ChoiceWhat kingdom do jellyfish belong to?CnidariaAnimaliaScyphozoaPorifera
- 26. Multiple ChoiceWhich Cnidarian class is known for containing the most venomous animal on Earth?CubozoaScyphozoaAnthozoaHydrozoa
- 27. Multiple ChoiceCnidarians have two body layers: epidermis and ________________.VascodermisGastrodermisMicrodermisInnerdermis
- 28. Multiple ChoiceCnidarians have a trait called dimorphism. This means that....They can change size whenever they are being chased.They camouflage to blend in with various organisms.They have three body forms.They have two body forms.
- 29. Multiple ChoiceWhich of the following is a reason that coral reefs populations are dying?PollutionHuman ActivityGlobal WarmingAll of the Above
- 30. Multiple ChoiceAfter a cnidarian has stung it's prey, it uses it's tentacles to pull the food into the hollow space inside of it's body. This space is called the __________________.MesohylMesodermGastrovascular CavityCoelovascular Cavity
- 31. Multiple ChoiceWhen corals become stressed due to poor environmental conditions, they expel the colorful xoozanthellae that live on their surface, causing the corals to appear white. This is called...Coral ReversionCoral BleachingCoral BaskingCoral Variation
- 32. Multiple ChoiceOne reason that coral reefs are so important, is that they provide a home for many other organisms. Some of the species that live on coral reefs can't be found anywhere else in the world. This means they are ___________ to coral reefs.EndemicEpistemicEvidentExothermic
- 33. Multiple ChoicePolyps are ______, while medusa are ______.sessile, motilemotile, sessileboth motile and sessile, just motile
- 34. Multiple ChoiceInstead of ctenophora having stinging cells, they have sticky cells calledcnidoblastscolloblastsnematocystsstickacytes
- 35. Multiple ChoiceWhat is wrong with this coral?It hasn't been to sunseekers in over a monthWarming of water made it bleachCoral mining caused it to sufficateThe loss of fish caused it to die
- 36. Multiple ChoiceWhat is this organism?jellyfishPortuguese man-of-warhydracoral
- 37. Multiple ChoiceWhat is a defining characteristic between a cnidarian and a ctenophore?Ctenophores are freshwater and cnidarians are marinecnidarians have stinging cells and ctenophores don'tctenophores have stinging cells and cnidarians don'tctenophore is another name for cnidarian
- 38. Multiple ChoiceHow do jellyfish move around?They beat fused cilia on their bodies like oars on a shippushing off with their tentaclesshooting air out of their mouthsthrough rhythmic contractions of muscles in their bells
- 39. Multiple ChoiceA colonial cnidarian is...coralcomb jelliesjellyfishsea anemones
- 40. Multiple Choice
Which part of a cnidarian's body is waste dispelled from?
the gastrodermis
the tentacles
the mesoglea
the gastrovascular cavity
- Answer choicesTagsAnswer choicesTags