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86 terms

9th-Biology Ch. 18

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porifera
"pore bearer"
porifera
sessile, asymmetrical, no true tissue (just cells living together), filter feed, reproduce asexually (hermaphrodite), and sexually
porifera
osculum, incurrent pores, collar cells, amebocytes, spicules, spongin,
osculum
hole at the top of porifera
incurrent pores
side pores where water comes in porifera
collar cells
set up the current, catch food and sperm, digest food in porifera
amebocytes
taxis, transport
SPicules
suPPort for SPonge
spongin
all the support fibers of porifera
cnidaria
hydra, jelly fish, sea anemone, coral, Portuguese man of war
cnidaria
radial symmetry, 2 tissue layers (endoderm & ectoderm), either polyp or medusa, mouth, gastrovascular cavity, tentacles, cnidocytes, nematocysts, nerve net, reproduce asexually (budding) and sexually (egg and sperm)
polyp
tentacles on top
medusa
tentacles on bottom
mouth
middle of tentacle
gastrovascular cavity
digest food in cnidaria
cnidocytes
contain the stinger
nematocycts
stinger
nerve net
instead of brain has this where whole body responds to action in cnidaria
platyhelminthes
flat worms, planaria, tape worm, fluke
planaria
3 tissue layers, BS, acoelomate, head, eyespots, cilia, mouth, pharynx, flame cells, reproduce by regeneration and egg & sperm
cephalization
concentration of nervous tissue at anterior end of body in planeria
eyespots
in planaria. can sense light and darkness
cilia
help planaria. move
mouth
middle of body in planaria.
pharynx
food sucker in planaria.
flame cells
get rid of nitrogen waste, "kidneys" of planaria.
tapeworm
scolex, hooks, suckers, proglottids
scolex
head of tapeworm
hooks
can hook onto the invaded individual of a tapeworm
suckers
get food in tapeworm
proglottids
reproductive segements of tapeworm
nematoda
round worm, oscaris, trichina, hook worm, pin worm
nematoda
BS, 3 tissue layers, pseudocoelomate, tapered at both ends, thick cuticle, live everywhere
rotifera
rotifer
rotifera
crown of cilia, live in water, free living (not parasitic)
annelida
segmented worms, earthworm, leech
annelida
worms, coelomate, protostome, BS, closed circ. system, 3 tiss. layers, live in dirt or water
earthworm
clitellum, pharynx, esophagus, aortic arches, crop, gizzard, ventral nerve cord, intestine, seta, nephridia, reproduce sexually but hermaphrodite
clitellum
produces slim ring in earthworm
pharynx
sucks dirt, located past the mouth in earthworm
esophagus
food tube in earthworm
aortic arches
pump blood in earthworm
crop
stores food in earthworm
gizzard
grinds food in earthworm
ventral nerve chord
runs along belly of earthworm
intestine
digest and absorb food in earthworm
setae
bristles on outside of body to help earthworm move
nephridia
filter out nitrogen waste in earthworm
mollusca
protostome, coelomate, BS, 3 tiss. layers, live in many habitats, open circ. system,
mollusca
gastropoda, bivalves, cephalopods, ex. octopus
gastropoda
mollusca, have on shell or no shell, radula, nephridia, ex. snails and slugs
radula
tongue like scrapper that gets algae off surface
nephridia
filters out nitrogen waste
bivalves
mollusca, have 2 shells, filter feed, adductor mussels (hold shell together) ex. oysters, muscles, scallops, clams
cephalopods
mollusca, have tentacles, radula and beak, closed circ. system, known as brainy invertebrates, ex. squid, cuttlefish
arthropoda
"jointed foot", millions of species, coelomate, protostome, 3 tiss. layers, exoskeleton that is molts, segmented (2, 3, or more segments), resperation, trachae (spiracles) book lungs or gills, have good sense organs (antenna & eyes), brain and ventral nerve chord, open circ. system, malphgian tubes, reproduce sexually (internal fert. on land but not in aquatic) ex. ant and lobster
spiracles
openings to the outside of arthropods to breathe
antenna
detect pheromones, used by arthropoda as part of sense system
colidascope
eyes of arthropods look like the view through a ______
malphgian tubes
filter out nitrogen waste in arth.
arthropoda
classes: arachnida, crustaceans, chilopoda, diplopoda, insecta
arachnida
arth., 3 bod segs, 8 legs, ex spiders, tick, mite, scorpion
crustaceans
arth., mostly live in water, 5 pairs of legs, ex. crab, shrimp, crawfish, lobster, barnicle
chilopoda
arth., centipedes, 1 pair of legs per seg., eat meat
diplopoda
arth., milipedes, 2 pairs of legs per seg. eat plant matter
insecta
considered most successful arthropoda class, 3 body segs., 6 legs, wings, ex. bees, flies, skeeters, wasp, hornet, termite, go through metamorphosis
complete metamorphosis
egg to larva to pupa to adult
incomplete metamorphosis
egg to nymph (mini adult) to adult
echinodermata
spiny skin, ex. starfish, sea star, brittle star, sea urchin sand dollar, BS, deuterostome, coelomate, water vascular system, tube feet
coelomate
body cavity lined with mesoderm
protostome
blastopore first develops into a mouth, has spiral cleavage
deuterostome
blastopore first develops into anus, has radial cleavage
chordata
dorsal hollow nerve chord, notochord(become vertabrae backbone), pharyngeal gill slits, post anal tails
chordata
agnatha, chondrichthyes, osteichthyes, amphibians, reptiles, aves, mammals
agratha
jawless fish, ex. lamprey, hagfish
alfactory
smelly thingy
chondrichthyes
cartilage fish, lateral line, olfactory sense, placoid scales, ex. shark, ray, skate)
osteichthyes
bony fish, olfactory sense, lateral line, swim bladder, buoyancy, opeculum, 2 chambered heart
opeculum
bony plate over gills
amphibians
metamorphosis, go to water to reproduce, 3 chambered heart, external fertilization, amplexus, ex. frog, toad, salamander)
reptiles
amniotic egg (water proof), internal fert., partial septum in heart, ectothermic, Jacobson's organ, ex. lizard, snake, turtle, crocs, gator
aves
birds, beaks, feathers, 4 chambered heart, endothermic
mammals
hairs, endotherms, 4 cham. heart, mammary glands, types: monotremes, marsupials, eutherians
monotremes
lay eggs ex. duck billed platypus, echidna
marsupials
pouched
eutherians
placentals