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90 Cards in this Set

  • Front
  • Back
Eubacteria
ancestors to organelles
Archaebacteria
ancestors to eukaryotic cells and live in environmental extremes
Algae
plant-like protists
Protozoans
animal-like protists
Dinoflagellata
organisms that cause Red Tide
Phylum Sporozoa
parasites to animals
Basidomycota
fungi division which includes muchrooms
Deuteromycota
fungi imperfecti, fungus with no known sexual stage
Porifera
sponge phylum
Cnidaria
jellyfish phylum
Annelida
earthworm phylum
Platyhelminthes
flatworm phylum
Rhynchocoela
ribbon worm phylum
Nematoda
round worm phylum
Cestoda
tapeworm class
flatworms
flat-bodied animals with 3 true body layers
Turbellaria
Phylum Platyhelminthes example: planarian
Trematoda
Phylum Platyhelminthes example: flukes
Cestoda
Phylum Platyhelminthes example: tapeworms
Characteristics of Turbellaria
free-living
under rocks in fresh water
two eyespots at anterior
pharynx
cephalization
longitudinal nerves on ventral connected by transverse
asexual by binary fission
sexual by gametes
mostly hermaphroditic
pharynx
a tube on the ventral surface
cephalization
concentration of stimuli receivers at the anterior end of an organism
Characteristics of Trematoda
parasites
uterus
genital pore
cause blood clots, remove nutrients in blood, kidney stones
snails (human liver fluke)
humans accidental hosts
uterus
used for development of young
genital pore
used for fertilization
Characteristics of Cestoda
most common flatworm
produce 200,000 eggs a day
absorb hosts nutrients (no digestive system
scolex
proglottids
cuticle
scolex
knob-shaped head
proglottids
body sections, NOT segments
cuticle
thick, protective covering that keeps the worm from being digested
Characteristics of Rhynochocoela
free-living
longest growing
marine
primitive circulatory system
proboscis
first one-way digestive tract
proboscis
muscular tube used to capture prey
Characteristics of Nematoda
long, slender, tapered at both ends
water and sandy soil
bilaterally symmetric
tube within a tube
inner tube a digestive tract
anus
some parasites
trichinella
nematoda parasite, pork
ascaris
nematoda parasite, in areas of poor sewage treatment and poor hygiene
guinea worm
nematoda parasite, Holy Land Cyclops, Drancunculus
pinworm, whip worm, hook worm
bare feet, nematoda parasite from soil
Phylum Annelida
complex worms, example: earthworm and leech
Characteristics of Annelida
very complex body structure
prostomium
mouth and anus
clitellum
setae
septa
well developed body systems
prostomium
upper-lip
clitellum
enlarged band that functions in reproduction
setae
bristle-like structres on the ventral surface used for traction
septa
cross walls that divide the body into segments
Digestive Body System
pharynx
esophagus
crop
gizzard
intestines
anus
pharynx
that sucks in soil, fuzzy
esophagus
to transport food
crop
sac-like structure that stores food
gizzard
muscular structure that grinds food
intestines
where nutrients are absorbed
anus
where wastes exit the body
Circulatory Body System
blood
closed system
5 aortic arches
blood
a transport tissue
closed system
blood moves through vessels
5 aortic arches
hearts that relax and contract to pump blood, anterior in the dorsal vessel and posterior in the ventral
Respiratory Body System
skin
cuticle
skin
moist for gas exchange (o2 in and co2 out)
cuticle
secreted by the epidermis to keep skin from drying out
Excretory Body System
nephridia, analogous to our kidneys
nephridia
metabolic wastes made by cells contain nitrogen that leave the worm through 2 tiny openings per segment, analogous to our kidneys
Nervous Body System
small nerve centers
ventral nerve cord
ganglia
small nerve centers
brain
ventral nerve cord
white cord
ganglia
enlarged nerve centers, light and sound sensitive
Reproductive Body System
hermaphroditic
seminal vesicles
seminal receptacles
clitellum
ovaries
seminal vesicles
sperm leave the worm
seminal receptacles
sperm are recieved in the worm, stored until eggs develop
clitellum
forms slime ring
ovaries
lay eggs in slime ring, move forward, sperm released, form cocoon after ring slips off
coelom
fluid-filled body cavity formed and surrounded by mesoderm
acoelomate
without a coelom, sponges and cnidarians
pseudocoelom
cavity forms between the mesoderm and the endoderm, roundworms and rotifers
Annelids
earthworms
Mollusks
snails, clams
Echinoderms
starfish
Chordates
includes humans
Coelomates
mollusks, annelids, arthropods echinoderms, and chordates
proboscis
muscular tube used to capture prey
Characteristics of Nematoda
long, slender, tapered at both ends
water and sandy soil
bilaterally symmetric
tube within a tube
inner tube a digestive tract
anus
some parasites
trichinella
nematoda parasite, pork
ascaris
nematoda parasite, in areas of poor sewage treatment and poor hygiene
guinea worm
nematoda parasite, Holy Land Cyclops, Drancunculus
pinworm, whip worm, hook worm
bare feet, nematoda parasite from soil
Phylum Annelida
complex worms, example: earthworm and leech
Characteristics of Annelida
very complex body structure
prostomium
mouth and anus
clitellum
setae
septa
well developed body systems
prostomium
upper-lip
clitellum
enlarged band that functions in reproduction
setae
bristle-like structres on the ventral surface used for traction
septa
cross walls that divide the body into segments
Digestive Body System
pharynx
esophagus
crop
gizzard
intestines
anus
pharynx
that sucks in soil, fuzzy
esophagus
to transport food