Definitions
Echinoderms
Simple Invertebrates
Mollusks and Annelid Worms
Arthropods
100
the digestive tract
What is the gut
100
What kind of symmetry do adult echinoderms have
What is radial symmetry
100
what is the plural of ganglia
What is ganglion
100
All mollusks have a __________ ganglia
What is complex
100
what percent of animal species are arthropods
What is 75%
200
an eye composed of many light detectors
What is a compound eye
200
What dose the word "echinoderm" mean
What is "spiny skinned"
200
what are the three types of symmetry
What are bilateral, radial, and asymmetry
200
most mollusks live in the _________
What is the ocean
200
name the three segments
What are head, thorax, and abdomen
300
antenna
What is a feeler that is on the head of an invertebrate that senses touch, taste, or smell
300
Where are the spines located on echinoderms
Where is on the animal's skeleton
300
what do sponges feed on
What are tiny plants and animals
300
Annelid worms are often called _______ed worms
What is segmented
300
what do spiders have instead of mandibles
What is a chelicerae
400
endoskeleton
What is an internal skeleton made of bone or cartilage
400
Sea cucumbers have _________ arms
What is no arms
400
most sponges have a skeleton with small, hard fibers called _______
What is spicules
400
doctors use ________es to reduce swelling
What are leeches
400
what stage dose incomplete metamorphosis have that complete dosen't
What is nymph
500
ganglion
What is a mass of nerve cells
500
sea lilies and feather stars have ___ to 200 feather arms
What is 5
500
true or false? tapeworms have no eyespots
What is true
500
What are the 3 classes of mollusks
What are gastropods, bivalves, and Cephalopods
500
name the stages of incomplete metamorphosis in order
What is egg, nymph, and adult
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