The thin tissue that covers a mollusk's internal organs
Mantle
100
A skeleton on the outside of an animal's body is called
a(n) ....
Exoskeleton
100
A skeleton on the inside of an animal's body is called
a(n)..
Endoskeleton
200
How do sponges get their food?
Sponges feed by straining food particles from the water through their pores.
200
What are two examples of segmented worms?
Earthworms and Leeches
200
Snails and slugs belong to this group of mollusks..
Gastropod
200
Spiders, ticks, mites and scorpions belong to which group of athropods?
Arachnid
200
What are two examples of echinoderms?
Sea star, sea urchin, sand dollar and brittle star
300
What are three examples of cnidarians?
Jellyfish, Sea Anemones and Corals
300
What is an example of a parasitic flatworm?
Tapeworm
300
What are two examples of mollusks in the bivalve group?
Bivalves have two shells, such as, clams, oysters and scallops.
300
What are two examples of crustaceans?
Crabs, crayfish, shrimp and barnacles
300
All echinoderms have this, which is a network of fluid-filled tubes that run through their bodies.
A water-vascular system
400
How do cnidarians get food?
Cnidarians paralyze their prey with stinging cells.
400
What type of worm is a planarian?
A planarian is a non-parasitic flatworm.
400
What is the most intelligent group of mollusks?
Cephalopods
400
What are two characterisitics shared by all arthropods?
All arthropods have an exoskeleton, segmented bodies and jointed appendages.
400
What is an echinoderm's endoskeleton made of?
Calcium
500
Which cnidarian body has a mouth that opens upward?
Polyp
500
What is one example of a roundworm?
Hookworm
500
What is the flexible ribbon of teeth that many mollusks have for scraping food from the surface of leaves?
Radula
500
What are the 4 groups of arthropods?
Crustaceans, Arachninds, Insects and Cetipedes and Millipedes
500
Explain how a sea star captures its prey.
A sea star uses its arms to grasp prey and tube feet to pull on closed shells. It then pushes its stomach out through its mouth and releases digestive chemicals to break the prey down.