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- 1. Multiple Choice
Capable of movement
Motile
Medusa
Diffusion
Nerve Net
- 2. Multiple Choice
Symmetry about a central axis
Chemoreceptors
Bilateral symmetry
Asymmetry
Radial symmetry
- 3. Multiple Choice
In cnidarians, a stinging cell that is used to inject a toxin into prey
Nematocyst
Symbiosis
Statocysts
Neurotoxin
- 4. Multiple Choice
A cnidarian body plan characterized by a bowl shape and adapted for a free-swimming life.
Symbiosis
Monoecious
Medusa
Nematocyst
- 5. Multiple Choice
What is the ciliated, free swimming larvae that may metamorph into a polyp?
larva
planula
parenchymula
ephyra
- 6. Multiple ChoiceWhich of the following is a correct description of the polyp body form?It is sessile and the tentacles and mouth point downward.It is sessile and the mouth and tentacles point upward.It is mobile and the tentacles and mouth point downward.It is mobile and the tentacles and mouth point upward.
- 7. Multiple ChoiceWhat are the organelles inside the cnidocyte stinging cells that inject paralyzing toxins into their prey?pinacocyteslysomatocytschoanocytesnematocysts
- 8. Multiple ChoiceWhat surrounds the mouth of Cnidarians?guard cellspinococytestentaclesspines
- 9. Multiple ChoiceA cnidarian gathers it's food byfiltering it through poresparalyzing it with venombringing it into the osculumkilling it with spikes
- 10. Multiple Choice
Cnidocytes
used for digestion
stinging cells of cnidarians
used to propel cnidarians
another word for tentacles
- 11. Multiple Choice
type of reproduction in which cells from two parents unite to form the first cell of a new organism
Zooxanthellae
Chemoreceptors
Asexual Reproduction
Sexual Reproduction
- 12. Multiple Choice
Which body form is represented by this diagram?MesogleaMedusaMosesNematocyst - 13. Multiple ChoicePolyps are ______, while medusa are ______.sessile, motilemotile, sessileboth motile and sessile, just motile
- 14. Multiple ChoiceCorals have a mutualistic relationship with a dinoflagellate called:OcelliZooxanthellaeSpongesDiatom
- 15. Multiple ChoiceAll Cnidarians have _____, but no _____.stinging cells, tissue cellsorgans, tissuetissues, organstissue, stinging cells
- 16. Multiple Choice
True or False: Cnidarians do not have a central nervous system.
True
False
- 17. Multiple Choice
How do cnidarians reproduce?
only sexually
only asexually
both sexually and asexually
genetically reproduced in labs
- 18. Multiple Choice
True or False: Cnidarians generally undergo two life stages: a polyp stage and a medusa stage
True
False
- 19. Multiple Choice
What body type does this cnidarian possess?
Polyp
Medusa
- 20. Multiple ChoiceWhen prey touches the “__________” on a cnidarian, the nematocyst ejects the filament with a sharp spine and injects venom.injectortriggerspineprickly
- 21. Multiple ChoiceWhich Phylum does this animal belong?Phylum PoriferaPhylum Cnidaria
- 22. Multiple Choice
Which predator of jellies has backwards pointing spines in its throat?
sunfish aka mola-mola
sea turtle
seagull
lobster larvae
- 23. Multiple Choice
An immature, eight-armed, free-swimming medusae formed from a dividing polyp is:
Planula
Ephyrae
Zooid
Schyphae
- 24. Multiple Choice
Which is the largest jellyfish species?
box jelly
sea wasp
lion's mane jelly
Portuguese man'o'war
- 25. Multiple Choice
What species of jellyfish can revert back to its polyp stage, and is considered to be "immortal"?
Tursiops truncatus
Turritopsis dohrnii
Lion's mane jelly
box jelly
- 26. Multiple Choice
If you're stung by a jellyfish, which is NOT a good remedy?
rinse with vinegar
rinse with seawater
urinate on the affected area
seek emergency treatment if difficulty breathing
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