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58 Cards in this Set

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What are Annelids?
Ringed worms
What are properties of the Phylum Annelid?
Coelom
Metanephridia
Parapodia
Vermiform
Metameres
Closed circulation
Setae = Chaetae
Coelom
Full body cavity
Metanephridia
Excretory gland
Parapodia
Feet-like things that help them move
Vermiform
Worm-like
Metameres
Segments that are repeated
Closed circulation
The heart is segmented
Setae or Chaetae
Little bristles on the parapodia that allow them to grip
How do Annelids move?
Crawl
Swim
What is a trochophore larva?
A annelid characteristic of polychaetes shared by all mollusks
early developmental stage
What are the three classes of Annelids?
Hirudinea
Oligochaeta
Polychaeta
What does Polychaeta mean?
Many setae
What is another name for a Polychaeta worm?
Palalo
What is a characteristic of the class Polychaeta?
Well-developed head
Where do organisms in the Class Polychaeta live?
Marine
What are forms of worms of Polychaeta?
Tubeworms
Sandworms
Fireworms
What do Fireworms do?
burn
How do tubeworms take part in mutualism?
Bacteria provide food for tubeworms
Tubeworms provide home for bacteria
What are characteristics of Class Oligochaeta?
Clitellum
Poorly developed head
Respiration through diffusion (no organs)
CPR
What is the Clitellum?
Swollen that secretes a fluid to form a cocoon for their eggs.
What is the common name for organisms in the Class Oligochaeta?
Earthworms
Where do organisms in the Class Oligochaeta live?
terrestrial and freshwater
What are characteristics of Class Hirudinea?
Blood sucking parasites
Coelom filled with mesenchyme
Clitellum
No setae
No head
Open circulation
Where do organisms in the Class Hirudinea live?
terrestrial and freshwater
What is the common name for organisms in Class Hirudinea?
Leeches
What are the general features of the Phylum Arthropoda?
Musculature
Exoskeleton
Largest animal group
Articulations
Tagma – Head, Thorax, Abdomen
Epidermis creating cuticle
Tagmosis
Process of becoming segmented
What are the Musculature of the Phylum Arthropoda?
Flexors/Extensors
What are articulations?
Weakened points and joints
What kind of excretory system does the Phylum Arthropoda have?
Malpighian tubules
Green gland
What are the Respiratory systems of the Phylum Arthropoda?
Gills and Book lungs: urine in head
Tracheae w/ spiracles
What kind of circulatory systems does a Phylum Arthropoda have?
Open
Heart w/ ostia and Hemocoel
What is an example of an organism in Phylum Arthropoda?
Stone crab
What are ostia?
Openings
What does the coelem do in the Phylum Arthropoda?
Degenerate
Ecolysis
Molting
Organism in the Phylum Arthropoda molt to
control hormones
Ecdysone
(from Y-organ or Prothoracic gland)
MOLTING!!!
Continuous vs. Discontinuous Growth
Molt inhibitor
Located in eye stalks
Responsible for molting
Hormonal Control in Arthropoda
Segmented head with hard exoskeleton and jointed legs
Instar
Stage between adolescence and adult stage
Molt-inhibiting hormone
(from X-organ)
NO MOLTING!!!
Exoskeleton molted during growth
Compound eye
Thousands of facets that determine light
Form images like humans
Most common type of eye
Arthropod are the most
Abundant
How are Arthropods classified?
Appendages
Mouth parts
Antennae
What are the two types of Appendages of Arthropods?
Biramous vs. Uniramous
Biramous vs. Uniramous
2 parts: Biramous
1 part: Uniramous
What kind of Appendages do Crayfish have?
Biramous
What are the mouth parts of an Arthropod?
Chelicerae & Pedipalps vs. Mandilbles
Chelicerae
Mouth
Pedipalps
Appendages used for feeding
Mandible
Bone that mkes up jaw
What are the subphylums of Arthropods?
Subphylum Trilobitomorpha
Subphylum Chelicerata
What are characteristics of Subphylum Trilobitomorpha?
Antennae (one pair)
Biramous
Extinct
Not all arthropods have
Antennae
What are characteristics of the Subphylum Chelicerata?
Chelicera & Pedipalps
Book lungs & girlls w/ fangs
Uniramous: 4 pairs
Mostly terrestrial
What is the body plan of the Phylum Chelicerata?
Telson
Opisthoma
Prosoma