Simple Invertebrates
Mollusks & Annelid Worms
Arthropods
Echinoderms
Misc.
100
Invertebrates have three types of body stucture. These are two of them.
What are bilateral, radial, or asymmetrical?
100
Match the following mollusk classes to their examples: Gastropods Squids & Octopi Bivalves Slugs & Snails Cephalopods Clams & Shell Fish
What is: Gastropods Slugs & Snails Bivalves Clams & Shellfish Cephalopods Squids and Octopi
100
These are three of the five types of arthropods.
What are: 1. Centipedes 2. Millipedes 3. Crustaceans 4. Arachnids 5. Insects
100
Sea Stars, Sea Urchins, and Sand Dollars are all members of this group.
What are Echinoderms?
100
These are two of the four body parts of a mollusk.
What are: 1. Foot 2. Visceral Mass 3. Mantle 4. Shell
200
A concentrated mass of nerve cells in an invertebrate.
What is a ganglion?
200
Snails and Slugs eat with this ribbon like tongue with curved teeth on it.
What is a radula
200
Arthropods all share these four characteristics:
What are: 1. Specialized Parts 2. Jointed Limbs 3. Exoskeleton 4. Well-Developed Nervous System
200
The term for an internal skeleton.
What is an endoskeleton?
200
These special cells filter and digest food in a sponge.
What are Collar Cells?
300
This surrounds the gut in complex animals.
What is a coelom?
300
These are the two types of circulatory systems found in animals.
What are Open Circulatory System and Closed Circulatory System?
300
These are the three main body parts of arthropods.
What are the head, thorax, and abdomen?
300
Echinoderms have this system of canals filled with fluid.
What is a Water Vascular System?
300
Shrimps, Barnacles, Crabs, and Lobsters are all this type of arthropod.
What is a Crustacean?
400
This group of invertebrates have stinging cells, medusa and polyp body forms, and include jellyfish.
What are Cnidarians?
400
These are two of the three types of Annelid Worms that we studied.
What are: 1. Earthworms 2. Marine Worms (polychaetes) 3. Leeches
400
The exoskeleton is made of protein and this special substance.
What is Chitin?
400
A circle of nerve fibers around the mouth of echinoderms.
What is a nerve ring?
400
The bristles on an arthropod such as a tarantula can detect these four things (name two).
What are: 1. Motion 2. Vibration 3. Pressure 4. Chemicals
500
These are two of the three classes of Flatworms.
What are: 1. Planarians & Marine Flatworms 2. Flukes 3. Tapeworms
500
This is an identical or almost identical repeating body part.
What is a segment
500
This type of eye is able to detect light as well as images.
What is a compound eye?
500
An echinoderm with a worm like shape that has a soft, leathery body.
What is a sea cucumber?
500
These sea star relatives have long, slim arms and are smaller than sea stars.
What are Brittle Stars or Basket Stars?
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