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40 Cards in this Set

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