LIFESTYLES
PORIFERAN CHARACTERISTICS
CNIDARIAN CHARACTERISTICS
CNIDARIAN CLASSES
POTPOURI
100
Organisms that float and drift with the ocean currents are called _____________.
What is plankton.
100
Poriferans are sessile. What does this mean?
What is permanently attached to the substrate.
100
What is the name for this Cnidarian body form?
What is a medusa.
100
Box jellies belong to which Cnidarian class?
What is Class Cubazoa.
100
Where would most Cnidarian nematocysts be located?
What is on the tentacles.
200
Organisms that live on or in the bottom are described as ____________.
What is benthic.
200
What do sponges eat and what is their feeding method called?
What is they eat plankton through "filter feeding".
200
What is the type of symmetry displayed by Cnidarians?
What is radial symmetry.
200
The corals belong to which Cnidarian class?
What is Class Anthozoa.
200
The most dangerous jelly (with a toxin greater than that of a cobra) is the _______________.
What is a box jelly.
300
What is the term to describe an organism that spends its entire life in a planktonic state?
What is holoplankton.
300
Describe the appearance and function of sponge spicules.
What is they are hard needle-like structures used for support & protection.
300
Stinging cells are called __________.
What are nematocysts.
300
The largest class of Cnidarians, with about 60% of the total known species, is the class __________.
What is Anthozoa.
300
The upside down jelly common in tropical waters is ___________.
What is Cassiopea.
400
Eggs, larvae, and juveniles that are part of the planktonic community for only a short time are called ____________.
What is meroplankton.
400
Sponge gemmules are best associated with what sponge activity?
What is reproduction.
400
The jelly-like material between the body layers of a Cnidarian is called _________.
What is mesoglea.
400
The "true jellies" belong to the class __________.
What is Scyphozoa.
400
The largest jelly, with an 8 foot bell, is the ____________.
What is Arctic Lion's Mane.
500
Organisms that move independently of ocean currents are called _____________.
What is nekton.
500
What is the name for the specialized sponge cell that distributes food and oxygen throughout the animal?
What is an amebocyte.
500
Describe the relationship between zooxanthellae and coral polyps.
What is zooxanthellae are symbiotic algae that live within the tissues of coral polyps. They are photosynthetic and provide food to the coral via photosynthesis. The coral in turn provides a place for the zooxanthellae to live.
500
To what Cnidarian class does the Portuguese Man-of-War belong?
What is Hydrozoa.
500
Describe how sponges can reproduce both sexually and asexually.
What is sponges can reproduce asexually through budding or the formation of gemmules. They can also reproduce sexually through the formation of eggs and sperm.
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