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