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44 Cards in this Set

  • Front
  • Back
multicellular organisms
metazoans
adaptation of a cell for a particular funcion
specialization
fertilized egg
zygote
hollow sphere of 1 layer of cells formed by mitosis
blastula
when 1 layer of cells folds inwards; forms 2 layers
gastrula
outer layer that later forms covering of animal
ectoderm
inner layer that forms lining of the gut
endoderm
middle germ layer that has all the systems and stuff
mesoderm
2 equal halves are the same
symmetry
no definite form
asymmetrical
2 different ends to the organism
polarity
perminently attached to solid objects
sessile
silicon and calcium substance that gives sponge its shape (skeleton)
spicules
able to regrow missing or damaged parts
regeneration
stinging cells in tentacles(used for protection and food getting)
nematocysts
live in a host and are protected by a tough covering
parasitic
head of a tapeworm
scolex
sections behind scolex mature ones at end
proglottid
disease caused by Trichina Worm
Trichinosis
secrets shell
mantle
tongue-like structure
radula
wide band on anterier end; aide in reproduction
clitellum
grinds food w/ aid of sand grain
gizzard
organ of nitrogen excretion in simple animals
nephridia
primitive hearts
aoritic arches
gets in mucsle by tricinia worm
cysts
both male and female parts
hermaphroditic
List three types of reefs formed from coral.
1)marginal
2)atoll
3)barrier
List the three germ layers.
1)endoderm
2)ectoderm
3)mesoderm
List the life cycle of a fluke.
1)produce egg in host
2)break op and release blood and eggs into intestinges; then passed out by feces
3)larae hatch and find snails
4)new worms break out of snail, wim in water
5)find new human-bore through skin and cycle starts over
List 5 specialized functions of cells.
1)support and movement
2)food gathering
3)digestion
4)nutrient transportation
5)nutrient storage
6)waste excretion
7)synthesis of chemicals
List the life cycle of a hookworm
1)soil as larvae
2)bore through skin in feet
3)enter blood vessels
4)enter heart then lungs
5)trachea-throat-swalled
6)intestings-attach to intestinal wall causing ripping, tearing and bleeding (adult stage)
7)lay eggs out through animal feces; cycle starts over
List the life cycle of a trichina worm:
1)cyst in muscles of animals
2)pig eats infected meat in wastes
3)cyst breaks open, larvae escape and burrow into small intesting
4)grow to adults, produce larvae that burrow into muscle and form cyst
5)human eats under-cooked prk meet and cycle starts over
sponge...phylum
porifera
hydra, jelly fish, coral, sea anemone
Coelenterata (Cnidarian)
phylum planaria, flukes, tapeworms
platyhelminthes
class planaria
turbellaria
class flukes
trematoda
class tapeworms
cestoda
phylum ascaris, hookworms, trichina
nematoda
phylum bivalves, gastropods, cephalopod
mollusca
phylum/class:featherduster, bristle worm
annelida/oplychaeta
phylum/class:earthworms
annelida/oligochaeta
phylum/class:leeches
annelida/hirudinea