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43 Cards in this Set

  • Front
  • Back
What does the Phylum "Annelida" mean?
"Little Ring"
What types of worms fit into the Phylum Annelida?
Earthworms, sea worms, and leeches
What can Annelida be nutrition-wise? (Ex. Herbivore, Scavenger, Predator, etc.)
Range from Filter-feeders to predators
Where does food enter an earthworm?
Through the mouth
Where does food go after it has entered the mouth of an earthworm?
Esophagus
(eso-phag-us)
What is the food-storage department of an earthworm called after the food leaves the esophagus?
The Crop
After food in an Earthworm leaves the crop (storage compartment), where does the food go for mechanical grinding?
Gizzard
(Giz-ard)
Where does food exit an earthworm after it has left the gizzard (place where mechanical grinding occurs)?
The Anus
How do MOST types of Annelids reproduce?
Sexually
What gender are earthworms?
They are hermaphroditic
(Herma-ph-rod-i-tic)
What type of fertilization do Annelids use?
External and Internal fertilization
What reproductive structure do earthworms have which create a mucus ring in which the egg and sperm are released?
Clitellum
(Cli-tell-um)
What organ in an earthworm creates a mucus ring around it?
The Clitellum
(Cli-tell-um)
What two things do Annelids use to move?
- Muscles
- Hydrostatic Skeleton
What "paddle-like appendages" do aquatic annelids have that help them to swim or crawl?
Parapodia
(Para-pod-ia)
What is a fleshy dividing wall between each segment of an annelid?
Septa (Singular because there is only one wall; NOT setae, the bristles)
(Sep-ta)



**There are really many walls, but think of them as singular
Where do earthworms breath?
Through the skin or gills
What type of circulatory system do annelids have?
A closed-circulatory system
What are the bristles on the sides of annelids called that they use for motion and anchoring themselves?
Setae (Plural because there are many bristles; NOT septa, the dividing walls.
(Set-ae)
What type of digestive system do Annelids have?
A digestive tract (**Probably important..)
What type of "Coelom-layout" do Annelids have?
A True-Coelom (fluid filled cavity surrounded by mesoderm)
(Coe-lom)
What does an Annelid's digestive system comprise of?
A mouth, anus, and digestive tract
What type of organ-systems do Annelids have?
Complex-organ systems
What "class" does an earthworm belong to?
Ogliochaetes
(Og-lio-chae-tes)
What type of parasites are leeches?
External parasites
What "class" does a sea-mouse belong to?
Polychaetes
(Poly-chae-tes)
What appendages do aquatic annelids/polychaetes have to help them move?
Parapodia
(Para-pod-ia)
What does "Mollusca" mean?
"Soft-body"
What are the three groups of in the Phylum Mollusca?
Gastropods, Bivalves, Cephalopods
(Gastro-pods) (Bi-val-ves) (Cep-halo-pods)
What animals go in the group of Mollusca "Gastropods"?
Snails and slugs
What animals go in the group of Mollusca "Bivalves"?
Clams, oysters, mussels, and scalops
What animals go in the group of Mollusca "Cephalopods"?
Squid, octopi, cuttlefish, and nautilus
(Nau-til-us) (Cuttle-fish)
What do snails use to scrape food off the surface of a material? (Can also be used as harpoon or drill)
Radula
(Rad-ula)
What are the three things a radula can be used as?
- A tongue-like structure
- a harpoon
- a drill (for eating other mollusks)
What kind of fertilization do Mollusca use?
Internal and External
What are the gender of SOME mollusks?
Hermaphrodite
(herma-phro-dite)
How do some mollusks reproduce?
Sexually
How do octopi and squid control their movement?
Jet Propulsion made possible by a Siphon
What do slugs and snails secrete when they move?
Mucus (to slide along various surfaces)
What type of "Coelom-formation" do Mollusca have?
True-Coeloms
What type of circulatory-systems do Mollusks have?
Some have open-circulatory systems, others have closed-circulatory-systems
What is the body plan of a mollusks called?
4 Part Body Plan (**Important)
What are the four things that make up a mollusk?
- Shell
- Foot
- Mantle
- Visceral Mass
(Vis-ceral)