Characteristics of
Arthropods

Characteristics of
Segmented Worms
Characteristics of Mollusks
Characteristics of Echinoderms
Characteristics of Sponges/Cnidarians
100
Why are arthropods invertebrates?
They don't have a backbone
100
How do the hairs on worm's bodies help them?
It helps them to move
100
Name 3 mollusks that are bivalves?
clams, oysters, mussels
100
List 3 types of echinoderms
Starfish, sea urchins, sand dollars, and sea cucumbers
100
Which phylum do sponges belong to?
Porifera
200
Arthropods have a hard covering on the outside of their body that supports and protects them. What is this called?
-An exoskeleton
200
What phylum will you find the roundworm in?
Nematoda
200
Which mollusk turns red when excited, and pale when frightened?
Octopus
200
Which type of symmetry does a starfish have?
Radial 
200
What is an adult sponge is called? 
sessile
300
How many legs do Arachnids have?
8
300
How do worms breathe?
Through their skin
300
The clams soft body is covered by a thin skin called the?
mantle
300
Is coral an Echinoderm or a Cnidarian?
Cnidarian
300
What is one type of Cnidarian?
jellyfish, coral, hydra, man-of-wars, sea anemone
400
Give 3 types of a crustaceans.
Crab, Lobster, and shrimp.
400
What is the bristle-like structures outside each body segment of a segmented worm?
Setae
400
Which one of the following is not a mollusk? A) Squid B) Snail C) Crab D) Clam
C) Crab
400
What do the tube feet on a starfish help it do?
Grip surfaces 
400
What are young sponges called?
embryonic
500
The three parts of an insects body are:
the head, thorax, and abdomen
500
Worms that have both male and female reproductive organs are called 
Hermaphroditic
500
What kind of feeder is a clam?
filter
500
How does a starfish eat a clam?
It will turn its stomach inside out and suck the clam into its stomach
500
What is the cavity called where digestion takes place in the jellyfish?
gastrovascular 
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