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25 Cards in this Set

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  • Back
Soft-bodied invertebrates that usually have shells are called:
mollusks
structures that grow from the body are called
appendages
sac used for temporary food storage in earthworms are called
crops
muscular structure that grinds the soil is the
gizzard
invertebrates with jointed appendages are
arthropods
What is an outer covering made of chiten?
exoskeleton
the shedding on the exoskeleton is called
molting
changes some adults go through to become adults is
metamorphosis
appendages that act like suction cups
tube feet
the type of symmetry a mollusk has
bilateral symmetry
the system where blood is NOT in vessels, but spreads over the organs
open circulatory system
the name of the tongue-like organ that works like a file
radula
bristle-like structures of segmented worms that help them move
setae
If the blood is contained in vessels, it is what type of circulatory system?
closed circulatory system
This is what covers, supports, and protects the arthropod's body with a nonliving material
exoskeleton
Arachnids have how many legs?
8
The largest group of complex invertebrates is
insects
Echinoderms have what type of symmetry?
radial symmetry
A spider is what type of arthropod?
arachnid arthropod
A star fish is a/an
echinoderm
A crab is a/an
crustacean arthropod
A clam is a
bivalve mollusk
An octopus is a/an
cechalopod mollusk
An earthworm is a/an
annelid
A grasshopper is a/an
insect arthropod.