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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
Bivalvia and Cephalopoda2 classes of Mollusca
no head, no radula, 2 shells w/ hinge, filter feed with siphonsBivalvia external featers
cilia and mucous to the mouthhow does the incurrent siphon move particles into the organism
externalwhat kind of fertilization do bivalvia have
arms or tenticles/ siphonin Cephalopoda, what is the anterior portion of the foot modified into?
external;, internal, absent3 types of cephalopoda shells:
the mucous will enlarge the mantle cavity to aid respirationIn cephalopoda: what does the mucus in the matle do?
Statocysts: it is at the base of the brain and it detects gravity through vibrations- fluid filledIn cephalopoda, what is the balance organ called?
Polyshaeta, Oligochaeta and Hirudineawhat are the 3 main classes of Annelida?
segmented body:similar segments called septa, each septa has mpst organ systems- can regeneratewhat is metamerism?
yesDo Annelida have a well developed coelomic cavity?
NephridiaIn Annelida: what are the excretory tubules called that are in each segment?
a protective cuticleIn Annelida: what does the epidermis secrete?
allows complex structure/function(body-wall muslces) coelom is dived into fluid filled compartments which creates the hydrostatic skeleton- this is good for muscle contrctionWhat is the significance of metamerism in Annelida
muscle contractionin Annelida: What is the hydrostatic skeleton good for?
AnnelidaWhat phylum does Polychaeta belong to?
first segment in annelida bodyWhat does the prostomium consist of in Polychaeta?
at each metamere (segment)Where are parapodia located?
gas exchange and locomotion2 functions of parapodia?
chitinwhat are the setea bristles on parapodia made of?
marine- benthicWhere do Polychaeta live?
the dorsal vessel(bld to anterior) and ventral vessel (bld to posterior)what are the two blood vessels in polychaeta called?
a tubule opening to the exterior which acts as an organ of excretionwhat are nephrida?
It runs the length of the body with lateral nerves and ganglia in each segmentIn polychaeta, where is the ventral nerve cord?
trochophore larva - free livingwhat kind of larva do polychaeta produce?
predatory-nocturnal-mobilesome things about clam worms:
hollow setae which are poisonous- feed on corals/anemonoessome things about fireworms
sedentary-crown of radules, have cilia to direct food to mouth, live in a tubesome things about fanworms
love in chitin tubes, absord nutrients through tentivles, nutrition from symbiotic bacteria in the wormsome things about pogonophorans
live in hydrothermal vents, fastest growing invert, no gut tractsome things about lipstick worms
AnnelidaWhich phylum do Oligochaeta belong to?
yes- they are shortDo oligochaeta have setae?
it is a mucus producing organ that helps in sperm exchange, it is also helpful in developing egg cocoonsWhat is the clitellum?
in the epidermisOligochaeta: where does gas exchage occure?
The septum is a mesoderm that divides segmentsOligochaeta: What is the septum?
2Oligochaeta: how many nephrida at each metamere?
no- but they can photodetectdo oligochaeta have eyes?
freshwater,marine. terrestrialWhere does class Hirudinea live?
on the anterior and posterior endswhere are the sucjers on hirudinea
the move with their suckersHow do hirudinea move?
cecaHirudinea: what breaks down undigested food?
nodo hirudiea what a fluid filled coelom?
shedding old skinwhat is ecdysis
ecdysoneWhat is the molting steroid hormone called?
nodoes phylum menatoda have cilia?
it allows the animal to resist external pressureNematoda: why is the pseudocoelom water filled?
the pseudocoelomate and cuticle... aids in circulation and the dispersal of nutrientswhat makes up the hydrostatic skeleton in nematoda?
collogen, which is secreted by the epidermiswhat is the outer cuticle in nematoda made of?
2- they run the length of the bodyhow many nerve cords do nematoda have?
skin/oral routes adults develp in sm intestine- suck blood- anticoagulent is secreted which prevents blood clottinghookworms:
eggs mature in soil and hatch in intestineRound worm:
causes trichinosis, fr. cysts in pork, juvenilles encyst human skeletal musclesTrichina worm:
mature in lrg intestine, females come out at night to lay eggs, need 02Pinworm:
elephantitus, livein lymphatic vessels, spread by mosquitoesFilarial worms
lives under skinGuinea worm
insectsPhylum Nematomorpha are parasitic to what?
noDo arthropoda have septa bt. internal segments?
Chitin: which is a nitrogenous polysacharide bound w/ proteinarthropoda: what is the cuticle made of?
arthropoda, called tracheaeWhat phylum have internal breathing tubes?
protective exoskeleton, segmentation/striated muscles=efficient locomotion, tracheal system, metamorphosis reduces competitionHow are Arthropoda high in diversity and abundance?
EcdysozoaWhat clade is the phylum arthropoda on?
merostomata, Pycnoganida, arachnidaWhat are the classes in subphylum Chelicerata?
chilopeoda and diplopodaWhat classes are in subphylum Myriapoda?
Cheliceraein Cheliceata, what are the moth parts modified into?
noDo Chelicerata have antennae?
horseshoe crabs: subphylum ChelicerataWhat are class Merostomata and what subphylum do they belong to?
they are sea spiders and they belong to subphylum Cheliceratawhat are class pycnoganida and what subphylum do they belong to?
they suck juices from cnidarians and soft bodied organisms with their probosciswhat do Pyconogandia eat?
head+thorax+appendageswhat is a cephalothorax
Arachnidawhich class of Chelicerata has a muscular pharynx
cheliceraein spiders what are modified into fangs?
silk threads produced by silk glands in spiderswhat are scleroproteins?
pedipalp modified to claws, detect prey through vibrationsScorpians:
2how many eyes do daddyonglegs have?
Chilopoda and DiplopodaWhat are the classes in subphylum Myriapoda?
2how many legs on each segement do diplopoda have
rostrum, carapace (cephalothorax and abdomen)in subphylum Crustacea: what does the tagmata consist of
chitin, CaCo3 and proteinin subphylum crustacea: what is the cuticle made of?
antennules, antenea, mandibles, maxillaemaxilliped and walking legsCrustacea: what does the cephalothorax consist of:
on the abdomenwhere are swimmerets?
stirated- for fast/strong movementwhat kinds of muscles do crustaceans have?
antennal gland releases urine, waste diffuses through thin parts of cuticleCrustacea: how does the excretory system work?
in antennules or urupodsWhere are the statocysts in crustaceans?
Oxegenated haemolymph enters fr. pericardial sinus vis ostia. Haemoolymph contains ameoboid cellsCrustacean open circulatory system:
dioeciousAre crustaceans dioecious or monoecious?
handle and ingest foodwhat do mandibles and maxillae do?
capture/hold foodwhat d maxillipeds and chelipeds do?
CrustaceaWHat subphylum of Arthropoda have calcareos teeth in their stomach
Branchiopoda, Maxillopoda and Malacostracawhat are the classes in subphylum Crustacea
FW legs flatclass Brachiopoda features:
lack appendages on abdominal segmentsclass Maxillopoda features
class Maxillopoda, subphylum crustacea: do not have a carapace, ovisacs attach to bodywhat class and subphylum are copepods in
Maxillopoda: braod carapace, 1st maxillae modified to suction cupswhat class are fish lice in?
Maxillopoda: carapace secretes calcareous plates, thoric legs modified into long cirri to filter feedwhat class are barnacles in? features?
Crustacea: soft shell, isopods, amphipods, krill, decapods(lobsters/crabs)what subphylum do Malacostraca belong to? featers?
Hexapodawhat subphylum do class insecta belong to?
head thorax and abdomenInsecta: what does the tagmata include?
3how many pairs of legs do insecta have
Chitin and scleroproteinsWhat is the cuticle made of in insecta?
InsectaWhich class of arthropoda have 3 of 6 legs on the ground @ once
yesDo insecta have striated muscles?
Membranous extension of the cuticleWhat are wings?
haemolymph, dorsal, diffuses, haemocoelInsects: Heart moves ____ into ____ aorta and "sloshes it around. It then ____ back through ________
Filters haemolymph and produces nitrogenous waste as uric acid which is passes to rectum for disposalInsecta: What do Malpighian tubules do?
tracheal systemWhat is the repiratory system for Insecta?
network, thin, tubules, throughoutTracheal system: extensive _____ of ___walled______ that branch _______the body
TracheolesWhat penetrates the cells in the Tracheal system?
SpiraclesIn the Tracheal system, what opens the tubes to the outside?
Prevent water lossIn the tracheal system, what do valves do?
Many ommatidiaInsecta: what is the compound eye made up of?
OcelliInsecta: in the compound eye, what detects light intensisty and photoperiod?
Complete metamorphosis, hatch as larva, oult through instars to pupa then moult to adultWhat is a Holometabolous insect
Incomplete/gradual metamorphosis, hatch as nymphs, moult through several instars to adultWhat is a Hemimetabalous insect?
Grasshopper, criscket, mantid, dragonfly, cockroachName some Hemimetabolous insects:
beetle, butterfly, moths, flies, fleas, beesName some Holometabolous insects?
Mimicry, Aposematic colouration, crypsis, thick exoskeleton, bad odoues, taste bad, irritating spray, stingersName some defense mechanisms of insecta
Aseroidea, Ophiuroidea, Echinoidea, Holothuroidea and CrinideaName the 5 classes in phylum Echinodermata
ossiclesEchinoderms: spiny calcareous plates are called
connected to water vascular systemwhat is the Madreporite
tiny pincers that clean the body, some have poisonWhat are Pedicellariae?
Madreporite, Stone canal, Ring canal, Radial Canal, Ampulle and PodiaMad Shit Rock & Roll And Party
Madreporite, Srone canal, ring canal, radial canal, Ampulle, Podiawater goes in through____, which is connected to the ______, which is joined to the _____, which connected _____ and ______ and____
it is a muscular sack in the water vascular system of EchinodermataWhat is Ampulle
2: Cardiac stomach, Pyloric stomachHow many stomachs do Asteroidea have? what are they called
on each armWhere are the gonads on Asteroidea?
oral surface, aboral surface, radialafter the larvae stage which have bilateral symmetry: left side becomes____ and right side becomes____ to make the adult have _____ symmetry
soft skin for gas exchange in AsteroideaWhat are Papulae?
AmmoniaWhat diffuses out of Papulae
NODo class Ophiuroidea have Papulae or Pedicellaria?
Sea lillies and Feather starsWhat 2 animals are in class Crinoidea?
HolothuroideaWhcih class in Echindodermata have reduced Ossicles
HolothuroideaWhich class have modified their tube feet around their mouth into tenticles?
HolothurideaWhich class have pearl fish in their rectum?
notochordchrdates: what is the first part of the endoskeleton formed in the embryo?
notochordchordates: what acts as an axis for muscle attachment?
Dorsal nerve cordWhat allows for increased size of CNS in chordates?
the brainthe anterior end of the dorsal nerve cord becomes what?
Pharyngeal gillswhat is used for filter feeding in protochordates?
EndostyleWhat secrestes mucous on the ciliated groove on the floor of the pharynx, that is good for food trapping and movement to the stomach
EndostyleWhat secretes hormones that regulates the metabolic rate in chordates?
marine onlyWhere does subphylum Urochordata live?
notochord, dorsal nerve cord and tailwhat will an adult urochordate lose prior to becoming sedentary?
cellulosewhat is the tunic made of in urochordates?
bad tunicatewhat are Didemnum?
urochordate- gellywhat is a sea salp
sandy/shelly substrateIn what kind of environment do cephalochordates live?
cephalochordateswhich subphylum of chordates have all 5 hallmark chordate characteristics as adults?