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23 Cards in this Set
- Front
- Back
- 3rd side (hint)
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An ______________ is an animal without a backbone.
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invertebrate
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starts with an "i"
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What are some examples of invertebrates?
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starfish
ants sponges jellyfish earthworms planarians |
s _ _ _ _ _ _ _
a _ _ _ s _ _ _ _ _ _ j _ _ _ _ _ _ _ _ e _ _ _ _ _ _ _ _ _ p _ _ _ _ _ _ _ _ _ |
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True or False?
Most animal species are invertebrates. |
True
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Even though an invertebrate does not have a backbone, it does have a skeleton.
True or false? |
True
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What are most invertebrate's skeletons made of?
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limestone
glass protein ordinary water |
l _ _ _ _ _ _ _ _
g _ _ _ _ p _ _ _ _ _ _ ordinary w _ _ _ _ |
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About how many animal species are there?
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over one million!
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it's a really big number!
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Why is a bee considered an invertebrate?
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It doesn't have a backbone.
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What doesn't it have?
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Besides bone, list 3 substances that could compose an animal's skeleton.
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limestone
glass protein ordinary water |
l _ _ _ _ _ _ _ _
g _ _ _ _ p _ _ _ _ _ _ ordinary w _ _ _ _ |
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Are adult sponges able to move around?
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No!
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What makes an animal "an animal"?
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Animals are living organisms that are:
eukaryotic multicellular have organized tissues must obtain food (not by photosynthesis) |
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What is the phylum called that sponges belong to?
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Porifera
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starts with a "P"
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True or False?
Embryonic (baby) sponges can swim around briefly (a little bit). |
True
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What are sponges' skeletons made of?
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spongin and spicules
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s _ _ _ _ _ _
and s _ _ _ _ _ _ _ |
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What is spongin?
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a flexible, fibrous protein that sponges' skeletons are made of
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What are spicules?
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stiff, pointed little spikes made of calcium carbonate or silica that sponges' skeletons are made of
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What are some commercial uses of sponges?
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used as bath sponges, cleaning sponges, and as painting sponges
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The _______ ________ are the cells lining the central cavity that possess flagella.
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collar cells
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c _ _ _ _ _ c _ _ _ _
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What causes water to flow inward through the small pores, pass through the central cavity, and exit through the large upper opening?
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flagella
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f _ _ _ _ _ _ _
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Why are sponges often called filter feeders?
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They filter water to obtain food.
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What transports food and other materials within the sponge?
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little amoebas
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To what sponge characteristic does the phylum name Porifera refer?
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their pores
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If adult sponges are permanently attached to solid objects, how can they colonize other areas?
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The (embryonic) baby sponges can swim briefly, so they can colonize other areas.
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What and how do sponges eat?
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They eat microscopic food particles that are caught by the cells lining the central cavity.
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