Porifera/Cnidaria
Platyhelminthes/Nematoda
Annelida
Mollusck/Echinoderms
Arthropods
100
These help the sponges take in food from water
What are collar cells
100
What is the common name for Platyhelminthes?
Flatworms
100
What is another name for Annelids?
Segmented worms
100
Name on characteristic of Mollusks and one of Echinoderms.
Foot and Mantle--Mollusk Spiny, rough skin--Echinoderm
100
Name three characteristics of arthropods.
Jointed appendages, exoskeleton, molt, open circulatory system; segmented bodies
200
What type of symmetry do cnidarians have?
Radial symmetry
200
What type of symmetry do Nematods have?
Bilateral
200
What type of symmetry to earthworms have?
bilateral
200
What type of digestive system do Mollusks have?
Complete
200
Which arthropod has 3 body segments?
Insect
300
What is the function of cnidocytes?
To catch prey?
300
Name two examples of Platyhelminthes.
flukes, tapeworms, planarians
300
Name an example of Annelids?
earthworms, leeches and sand worms
300
What type of symmetry do adult echinoderms have?
Radial
300
What do arachnids use to poison their prey?
Chelicerae
400
What are two characteristics of Porifera?
No symmetry; no tissues or organs, simplest animals; filter feeders
400
What type of digestive system do roundworms have?
Complete digestive system
400
What type of circulatory system do Annelids have?
Closed
400
Name an example of a bivalve, gastropod and cephalopod.
Oyster, clam, mussel snail, slug octopus, squid
400
How many pairs of leg do insects have? How many do arachnids have?
3 pairs for insects; 4 pairs for arachnids
500
Give two examples of Cnidarians
jellyfish, hydras, sea anemones, coral
500
All invertebrates are thought to be descended from what?
protists
500
What are characteristics of bilateral symmetry?
head and tail; mirror image; eyes on head
500
What do Echinoderms use for locomotion?
tube feet
500
Name three characteristics of animals.
Multicellular, eukaryotes, lack cell walls; heterotrops (ingest food)
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