Annelida Test Flashcards
Pelagic polychaetes are
Free-swimming
Errant polychaetes are not tube-dwelling but are
Similar they crawl about beneath stones, shells, rock, coral, algae, and sessile animals
Gallery dwellers are
Adapted for burrowing in sand or mud
Sedentary burrowers are
Able to construct simple vertical Burris with only one or two opening to the surface
Tube-dwelling polychaetes
Are carnivores and extend from the tube opening to seize small invertebrate prey
Family Nereididae
Feed with a mucus bag
Family Onuphidae
Omnivorous and eat with pharyngeal jaws
Family Amphinomidae
Fire worms
Family Glyceridae
Blood worms
Family polynoidae
Scale worms
Family Aphroditidae
Sea mice
Arenivolidae
Lug worms
Family Terrbellidae
Spaghetti worm
Family Serpulidae
Christmas Tree Worms
Family Siboglinidae
Pickle Worms
Naididae are a family of clitellate worms like
Sludge worms
What characteristics do all Annelida share?
Metameric symmetry; chitinous setae; coelom; closed circulatory system; complete digestive system
What are the respiratory pigments
Hemoglobin and hemerythrin
The primary excretory organ found in all Annelida is?
A pair of nephridia for each metamere
Name all sensory organs use by Annelids?
Tactile organs, taste buds, statocysts, photoreceptor cells, and eyes with lenses
Where is the brain located in annelids?
In the nervous system with a pair of dorsal cerebral ganglia connective to cord
Name the ways Annelids reproduce?
Budding, sexual, asexual, hermaphroditic
Know where each class is found in the environment?
Polychaete- marine
Pogonophora- deep sea
Clitellata- in MUDs and habituated with little oxygen
The major body sections are
Prostimium, peristomium, parapodia, pugidium
Metamerism is
Repeated body segmentation
Circulatory system
Is segmentally arranged
Polychaetes exchange has through
Skin, gills, or parapodia
The excretory system organ is
Nephridia
What sensory organ orients polychaetes towards light
Photoreceptor cells
Polychaetes reproduce in what primary way
They shed gametes in the water to be fertilized; sexual
Eggs and sperm exit the body where
Special gonoducts
What causes swarming
Annual, lunar quarters during the last quarter of October and November
Larvae stage is
Trochophore
Why are pogoniphora recognized as Annelids?
They show some segmentation as well as they live in mud
