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5
×
Cnidaria have one opening surrounded by _________ with stinging cells.
tentacles
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5
×
Water enters a sponge through its ______________ and deposits nutrients.
central cavity
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5
×
These are the simplest invertebrate animals. They have no organs (2 types).
Porifera and Cnidaria
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seesaw
Swap points!
Oops!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
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25
×
baam
Lose 25 points!
Oops!
5
×
What are cnidoblasts?
stinging cells that give this group its name.
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5
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Why do cnidaria have stinging cells?
To paralyze prey
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thief
Give points!
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20
25
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fairy
Take points!
5
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15
20
25
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shark
Other team loses 15 points!
Okay!
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lifesaver
Give 25 points!
Oops!
5
×
What is the habitat of most cnidarians?
the ocean
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Okay!
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eraser
Reset score!
Oops!
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magnet
Take 15 points!
Okay!
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rocket
Go to first place!
Okay!
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baam
Lose 10 points!
Oops!
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lifesaver
Give 15 points!
Oops!
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fairy
Take points!
5
10
15
20
25
×
shark
Other team loses 15 points!
Okay!
×
lifesaver
Give 25 points!
Oops!
5
×
As adults, sponges are all motile. True or False?
False. They are all sessile, and live attached to rocks or coral.
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5
×
What do "motile" and "sessile" mean?
motile: moving/ sessile: stationary
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5
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What group of invertebrates is this?
Porifera (it's a sponge)
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5
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How do sponges feed?
They are filter feeders. They feed on oxygen and small particles of nutrients suspended in water.
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5
×
What group of invertebrates is this?
cnidaria- it is coral
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5
×
An invertebrate's environment where it lives is also known as its _____________.
habitat
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