Flashcards in Phylum Annelida Deck (43):
"Feet" on either side of a worm
The gut cavity surroundin the intestines
Muscles running along the length of an Anne lid that allows locomotion
Muscle that surrounds the body of the Anne lid that work in conjuction with the longitudinal muscles to allow locomotion
Pharynx or probosis
Organ that connects the mouth with the esophagus
Unsegmented preoral portion of the head
Unsegmented portion if the head that is located between the prostomium and charter 1
First segment with parapodia
The unsegmented tail region of the worm
Process of reproductiom in polychaetes referring to the growth of a reproductive epitome that is released during a specific time in the lunar cycle
Reproductive behavior in time with the lunar cycle when certain polychaete swarm at the surface
End or tail region
Having reproductivery organs of one gender or another
Planktonic larval stage of the polychaete
Example of polychaete
Example of oligochaeta
Example of hirudinea
Example of pogonophora
Example of echiura
What are the general characteristics of thus phylum?
They are segmented worms, good crawlers, burrowers, have a coelum, and live in various tropic habitats.
What kind of feeders are in this phylum?
Carnivorus, scavengers, deposit feeders, and filter feeders
Most Anne lids are members of what class
What type of feeders are polychaeta?
What structures does the needs use to capture prey?
Pharynx and jaws
What are the jaws made of
Protein and zinc
What is another name for the pharynx?
What happens to the body before epitoky?
The anterior portion becomes the atone and begins to produce reproductive copies of itself called epitoke
What are the pals and tentacle cirri used for?
Sensory and feeling
What is the cuticle and what does it do
Covers the worm for moisture control
How many eyes does the mere is have?
What is the name for the simple, invertebrate eyes?
Singular - ocellus
Plural - ocelli
What structure does the nereis use to evert it's pharynx?
The protractor muscles
What's the major difference between oligochaetes and polychaetes?
Oligochetes have no parapods, are hermaphroditic, no larval stages, and are terrestrial while polychaetes are marine
How are leeches used in medicine?
They bring fresh blood to the skin.
After microsurgery or limb reattachment.
To add an anticoagulant to the area to prevent blood from clotting.
Is prostomium anterior
Is pygidium anterior
No, it's posterior
Is the pharynx anterior
Is the peristomium anterior
Is the anal cirri anterior
No, it's posterior