Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
87 Cards in this Set
- Front
- Back
|
mollusc classes
|
polyplacophora
bivalva gastropoda cephalopoda |
|
|
mollusc gut
|
complete
|
|
|
mollusc circulatory system
|
open
|
|
|
ctenidia
|
mollusc gills in mantle cavity
|
|
|
osphradium
|
chemosensory organs in molluscs
|
|
|
radula
|
mollusc toothed feeding tongue
|
|
|
mollusc shell
|
secreted by epidermal layer (mantle)
|
|
|
mollusc 6 defining traits
|
shell secreted by mantle
ciliated ventral foot radula metanephria ctenidia osphradium |
|
|
polyplacophora are...
|
chitons
|
|
|
bivalva are...
|
scallops, oysters, clams
|
|
|
gastropoda are...
|
snails and slugs
|
|
|
cephalopoda are...
|
octopus and squids
|
|
|
polyplacophora feed when
|
this species only feeds when fully submerged
|
|
|
chitons have what food diet
|
herbivorous
|
|
|
Bivalves eat how
|
filter feeding
|
|
|
siphon
|
tubular part of mantle communicating with outside in bivalves
|
|
|
mollusc blood has what oxygen binding pigment
|
hemocyanin
|
|
|
mollusc with no radula
|
from this phylum BIVALVES are the only ones with no radula
|
|
|
Bivalve digestion (4)
|
1 mucous string on crystalline style
2 crystalline style spun around cilia 3 mucous string flings food on gastric shield 4 from gastric shield goes to digestive diverticula |
|
|
Bivalves have no...(2)
|
they have no
Radula sensory structures |
|
|
Bivalva subclasses
|
protobranchia
lamellibranchia |
|
|
protobranchia characterizing traits (3)
|
live in soft sediment
2 gills - 2 demibranchs per gill deposit feeder |
|
|
Lamellibranchia animals
|
cockles and clams
|
|
|
lamellibranchia characterizing traits (2)
|
gills used for food acquisition and gas exchange
attached to substrate by BYSSAL THREAD |
|
|
Gastropoda types of feeding
|
herbivore, carnivore, scavenger, filter feeder, deposit feeder
|
|
|
Gastropoda don't have (3)
|
kidney
1 heart auricle 1 gill |
|
|
Gastropoda characterizing traits (6)
|
many food acquisition types
loss of kidney, auricle, and gill torsion operculum eye spots and tentacles well developed CEPHALIZED head |
|
|
Gastropoda subclasses (3)
|
prosobranchia
opistobranchia pulmonata |
|
|
prosobranchia animals
|
aquatic snakes
|
|
|
opistobranchia animals
|
sea slugs, teropods
|
|
|
pulmonata animals
|
land snails and slugs
|
|
|
Prosobranchia orders (2)
|
archaegastropoda
neogastropoda |
|
|
archaegastropoda animals
|
abalone, limpets
|
|
|
prosobranchia habitat
|
clear, clean water
|
|
|
prosobranchia characterizing traits (4)
|
clear clean habitat, holes in shell, herbivore, 2 gills
|
|
|
Neogastropoda characterizing traits (2)
|
1 gill
1 siphon |
|
|
prosobranchia cone snail specialness
|
this animal exudes conotoxin, which is being developed as a pharmaceutical for pain relief
|
|
|
Opistobranchia characterizing traits (2)
|
exterior gills
shell reduction/ loss |
|
|
Opistobranchia orders (2)
|
nudibranch
pteropods |
|
|
nudibranch characterizing traits (3)
|
anal gill plume
rhinophore cerata |
|
|
cerata
|
take unfired nematocysts and put into their own tissue to fire themselves
|
|
|
rhinophore
|
sensory protuberances on front of nudibranchs
|
|
|
Pteropod animals
|
perlagic snails
|
|
|
pteropod characterizing trait (1)
|
2 parapodia (modified feet)
|
|
|
Pulmonata characterizing traits (2)
|
small/missing shells
large mantle cavity |
|
|
Cephalopoda characterizing traits (3)
|
1- carnivorous raptorial feeders
2- foot modified into arms and tentacles 3- radula modified into beak |
|
|
cephalopoda subclasses (2)
|
coleoidea
sepioidea |
|
|
nautiloidea animals
|
nautilus
|
|
|
nautiloidea defining characteristic (1)
|
external shell
|
|
|
coleoidea defining characteristics (2)
|
fish-like
reduced shell |
|
|
sepioidea animal
|
cuttlefish
|
|
|
tenthoidea animals
|
squid
|
|
|
tenthoidea defining characteristics (2)
|
streamline body
reduced shell parts |
|
|
octipoda defining characteristics (3)
|
8 arms
no shell benthic |
|
|
gastropoda circulation
|
closed
|
|
|
gastropoda heart
|
3 hearts - 2 branchial 1 systematic
|
|
|
branchial heart
|
in gastropods
blood through gills |
|
|
systematic heart
|
in gastropods
blood to body (besides gills) |
|
|
oxygen binding pigment in gastropods
|
hemocyanin
|
|
|
gastropoda locomotion
|
burst and sustained speed
sepiods = fin swim octopi - swim and walk |
|
|
chromatiphores
|
in gastropoda - affect color through muscle control
|
|
|
gastropoda eyes
|
some are convergent with vertebrate eyes
lens,cornea, iris, retina |
|
|
pseudomorph
|
gastropoda trait - throw ink image of self behind themselves when running from predators
|
|
|
Annelid animal type
|
worms basically
|
|
|
annelid defining characteristics (5)
|
vermiform
metamerism metanephrium nephrostome septa |
|
|
veriform
|
worm-like
|
|
|
metamerism
|
identical repeating segments
|
|
|
metanephrium in annelids used for
|
water balance and excretion
|
|
|
nephrostome
|
sucks in coelomic fluid from previous segment
|
|
|
septa
|
mesodermal sheets of tissue creating segments
|
|
|
annelid circulatory system
|
closed
|
|
|
annelid classes (2)
|
polychaeta
clitellata |
|
|
annelid forms of locomotion
|
errant
swimming free moving crawling paripodia sinusoidal contractions of long muscles |
|
|
carnivorous annelid form of motion
|
errant
|
|
|
deposit feeding annelid form of motion
|
burrow
sedentary |
|
|
filter feeding annelid form of motion
|
burrow
some sedentary |
|
|
annelid reproduction
|
epitoky
let out highly reproductive epotokes |
|
|
polychaeta animals
|
marine worm
|
|
|
clitellata animals
|
leaches
earthworms |
|
|
clitellata subclass (1)
|
oligochaeta
|
|
|
oligochaeta animals
|
earth worms
|
|
|
clitellata don't have
|
sensory structures on prostomium
porapodia |
|
|
clitellata defining characteristics (3)
|
have clitellum but also are hermaphrodites
no sensory structures on prostomium no parapodia |
|
|
Nematode defining characteristics (7)
|
eutely
unsegmented collagenous cuticle only longitudinal muscles sinusoidal contractions pseudocoelom circulatory system dioecious |
|
|
eutely
|
constant number of cells
nematodes |
|
|
nematode gut
|
complete
|
|
|
caenorhabditis elegans
|
nematode used in research
|
