Term
| Type of circulatory system in Mollusca |
|
Definition
|
|
Term
|
Definition
| fat storage lining in a coelom |
|
|
Term
|
Definition
|
|
Term
|
Definition
later larval stage of Sipunculida |
|
|
Term
| Mollusc characteristic unique to Scaphopods |
|
Definition
| Unlike other molluscs, Scaphopods do not have gills |
|
|
Term
| ciliated crown of Rotifera |
|
Definition
|
|
Term
| In shelled molluscs, forms the shell and adds to it to increase strength and size as the animal grows |
|
Definition
|
|
Term
|
Definition
Used for scraping, cutting, and chewing food Unique to molluscs Not present in Pelecypoda (bivalves) |
|
|
Term
|
Definition
| chemosensory structure that is located in the mantle cavity of molluscs only |
|
|
Term
| Characteristics of interstitial animals |
|
Definition
Few large eggs Cilia Complete digestive tract |
|
|
Term
|
Definition
Hookworm Human parasitic nematode Obtained by walking on infected soil |
|
|
Term
|
Definition
Pinworm Human parasitic nematode Contracted by hand contact with infected person |
|
|
Term
|
Definition
Human parasitic nematode Contracted by eating poorly cooked pork |
|
|
Term
|
Definition
Heartworm Dog parasitic nematode Transmitted by mosquitos |
|
|
Term
|
Definition
Pig roundworm Parasitic nematode of pigs, man, and grazing animals |
|
|
Term
|
Definition
Human parasitic nematode Found in lypmh glands and bloodstream Mosquitos are secondary hosts |
|
|
Term
|
Definition
Rotifer that is parthenogenetic: only mictic and amictic females Females produce 2N eggs Live in puddles that dry up |
|
|
Term
| Life cycle of Rotifers under good conditions |
|
Definition
Amictic female -> mitosis -> 2N egg -> hatches -> amictic female |
|
|
Term
| Life cycle of Rotifers under bad conditions |
|
Definition
| Mictic female -> meiosis -> mictic egg -> male (fertilizes 1N egg) -> zygote -> 2N resting egg (until stimulus provides good conditions) |
|
|
Term
| Phylum Acanthocephala (parasitic cycle) |
|
Definition
Parasites requiring 2 hosts larvae found in insects or crustaceans (secondary hosts) Adults within verbrate digestive tracts (mostly fish) (primary hosts) |
|
|
Term
| Phylum Nematomorpha: life cycle |
|
Definition
"horsehair worms" Adults mate in knots, then die -> eggs in water -> taken up by insect or larva penetrates insect (secondary host) -> absorb food -> emerge from hosts -> adults found in arthropods (primary host) |
|
|
Term
| Suborder Paleoheterdonta (Order Heterodonta) |
|
Definition
| Glochidium parasitic veliger on fish gills |
|
|
Term
|
Definition
| Parasitic on octopuses and other marine invertebrates |
|
|
Term
|
Definition
|
|
Term
| Feeding mode of Polyplacophora |
|
Definition
|
|
Term
| Feeding mode of Scaphopods |
|
Definition
| Captures forams and crushes them |
|
|
Term
| Phylum Nematomorpha: body plan |
|
Definition
Simple cuticle Pseudocoel |
|
|
Term
| Function of a hydrostatic skeleton |
|
Definition
|
|
Term
| Function of chromatophores |
|
Definition
|
|
Term
|
Definition
| Protection of shells of molluscs |
|
|
Term
| Phylum Gastrochicha (interstitial) |
|
Definition
No psuedocoel protrandric hermaphrodites: start out male, end up female Live in ephemeral habitats (pools that dry up - "here today, gone tomorrow") Monociliated cells for gliding |
|
|
Term
Phylum Kinoryncha (interstitial) |
|
Definition
Has zonites Cuticle in segments Spiny, moveable probscis that is used in crawling |
|
|
Term
| Phylum Nematoda (body plan) |
|
Definition
Collagen cuticle epidermal cords |
|
|
Term
| Subclass Nautiloidea (Class Cephalopoda) |
|
Definition
Siphuncle present: secretes gases and regulates buoyancy Simple sutures |
|
|
Term
|
Definition
Complex sutures No siphuncle |
|
|
Term
| Feeding mode of Pripulida |
|
Definition
| Prey falls into pit and is eaten |
|
|
Term
| Phylum Nemertea (body plan) |
|
Definition
Ciliated epidermis No cuticle and aceolomate Gonads in pouches that burst (pilidium) Complete digestive tract Closed circulatory system |
|
|
Term
|
Definition
| later larval stage of Sipuncula |
|
|
Term
| Phylum Sipuncula (body plan) |
|
Definition
metanephridia present: excretory organs no cutile or segmentation |
|
|
Term
|
Definition
| Live only in stagnant mud |
|
|
Term
|
Definition
Strong radula Tough mantle |
|
|
Term
| Characteristic unique to Monoplacaphorans |
|
Definition
| Unconventionally many gills |
|
|
Term
Order Teuthoidea (Class Cephaloapoda) |
|
Definition
True squids Pen is used for support |
|
|
