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40 Cards in this Set
- Front
- Back
Many arthropods have feelers called what?
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antennae
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All arthropods have jointed ____________________.
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feet
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What two skeleton types do sponges have?
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spicules and spongin
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The jaws of many arthropods are called what?
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mandibles
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What is the name for a pouch lined with cells that release powerful enzymes?
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gut
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The earthworm organ that grinds and digests food from soil is the _______________.
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gizzard
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Name the five main groups of arthropods.
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insects, crustaceans, arachnids, centipedes, and millipedes
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What kind of symmetry do sponges have?
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asymmetry
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Leeches are a type of ____________________worm.
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annelid
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What invertebrate group contains gastropods, cephalopods, and bivalves?
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mollusks
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What is the name for animals without a backbone?
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invertebrate
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All mollusks have a muscular _____________for movement.
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foot
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The ___________________protects the body of any mollusk that does not have a shell.
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mantle
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What kind of symmetry does an animal have if it has a body with two similar halves?
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bilateral symmetry
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Snails and slugs eat with a ribbon-like tongue called a what?
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radula
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What is the largest phylum of animals in the world?
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arthropods
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What kind of symmetry does an animal have if it has a body with two similar halves?
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bilateral symmetry
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What two body shapes might a cnidarian have?
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medusa and polyp
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Water enters a sponge through tiny openings called what?
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pores
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If a sponge loses part of its body, it might ___________________that lost part.
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regenerate
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Complex invertebrates have a space where the gut is located called the what?
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coelom
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Annelid worms are best known for their many ________________.
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segments
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What kind of cells in a sponge digest food particles directly from the water?
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collar cells
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Water flows out of a sponge through a central cavity called a what?
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osculum
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All arthropods have an external skeleton called an
_______________________. |
endoskeleton
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In some invertebrates, dozens of nerve cells come together in groups called what?
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ganglia
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What invertebrate group has stinging cells?
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cnidarians
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Nematodes is another name for the group of worms called what?
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roundworms
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What structures would you find covering the ventral surface of a seastar?
Hint: They create suction for movement |
tube feet
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What is the simplist group of worms? It includes planarians and tapeworms.
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flatworms
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The droppings of an earthworm are called _________________.
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castings
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What invertebrate group is characterized by having spiny skins?
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echinoderms
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What kind of symmetry does an animal have if it has body parts that are arranged around a central point?
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radial symmetty
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All arthropods have an external skeleton called an
_______________________. |
exoskeleton
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What are the three body sections of insects?
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head, thorax, abdomen
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What is the change process in insects in which the adult looks different than the young?
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complete metamorphosis
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What are the four stages of complete metamorphosis?
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egg, larvae, pupa, adult
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What kind of symmetry do adult seastars have?
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radial
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What do echinoderms use in order to move and obtain food?
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the water vascular system
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Many tapeworms are _______________________because they live in or on another organism to survive.
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parasite
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