WorksheetsPhylum Cnidaria
Total questions: 26
Worksheet time: 14mins
Capable of movement
Motile
Medusa
Diffusion
Nerve Net
Symmetry about a central axis
Chemoreceptors
Bilateral symmetry
Asymmetry
Radial symmetry
In cnidarians, a stinging cell that is used to inject a toxin into prey
Nematocyst
Symbiosis
Statocysts
Neurotoxin
A cnidarian body plan characterized by a bowl shape and adapted for a free-swimming life.
Symbiosis
Monoecious
Medusa
Nematocyst
What is the ciliated, free swimming larvae that may metamorph into a polyp?
larva
planula
parenchymula
ephyra
Cnidocytes
used for digestion
stinging cells of cnidarians
used to propel cnidarians
another word for tentacles
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
True or False: Cnidarians do not have a central nervous system.
True
False
How do cnidarians reproduce?
only sexually
only asexually
both sexually and asexually
genetically reproduced in labs
True or False: Cnidarians generally undergo two life stages: a polyp stage and a medusa stage
True
False
What body type does this cnidarian possess?
Polyp
Medusa
Which predator of jellies has backwards pointing spines in its throat?
sunfish aka mola-mola
sea turtle
seagull
lobster larvae
An immature, eight-armed, free-swimming medusae formed from a dividing polyp is:
Planula
Ephyrae
Zooid
Schyphae
Which is the largest jellyfish species?
box jelly
sea wasp
lion's mane jelly
Portuguese man'o'war
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
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
