final material

• what has 3 well-developed tissue layers but no body cavity? what phylum am i?


  platyhelimnthes
• what is a common name for the organism platyhelminthes?


  flat worms
• what parasite is found in undercooked pork muscles? what plylum am i?


  nematodes
• what is a common name for nematodes?


  round worms
• if i am a flatworm with a snail and one or two other hosts during my complex life cycle what am i?


  liver flukes
• what is the phylum for liver flukes?


  platyhelminthes
• if i am an intestinal parasite with my body made up of segments, that are full of eggs. these segments break loose and pass out with the stools. what is my common name?


  tape worm
• what is the phylum for tape worms?


  platyhelminthes
• what is acoelom?


  no body cavity
• what is psuedomcoelom?


  body cavity is between the mesoderm & endoderm in nematodes
• what is protostome development?


  developing mouth first with mosaic development
• what is a hermaphrodite?


  being both male & female. monecious
• what is cephalization?


  development of a head
• what is monoecious?


  having both male and female sex organs in one individual
• what is diecious?


  sexes in separate individuals
• what is an excretory system?


  body waste system
• what is tegument?


  skin on platyheminithes
• what synapomorphy have been used thus far to distinguish the phyla from eachohter?


  multi cellular, triploblast, protostome, lophotrochozoan, bilateral, true tissue
• describe triploblastic development and what protostome development is.


  condition of 3 layers endoderm, mesoderm and ectoderm and mouth before anus
• the different digestive systems of various phyla and between free-living and parasitic forms?


  parasitic forms have much reduced digestive system and diverted energy towards reproduction
• what is protonephridia?


  platyhemnithes
• what sensory organs are found in the various phyla?


  tactile
• what are the significant parasites on humans?


  flat and round worms and acoelomates and psuedocoelomates
• what is an example of free-living round worms?


  vinegar eels
• review rotifers


  microscopic, the cillia on the corona looks like brush bristles
• what is a lophophore?


  a specialized feeding structure
• what is a trochlea?


  larval form
• distinguish an open circulatory system vs a closed


  open circulatory system resembles a fish tank because it spills over the top then drains a closed

  circulatory system is restricted to vessels.
• distinguish between a brain and a ganglia?


  the brain is a whole organism that manages a coordination of structures. the ganglia is the regional control center
• what is a hydrostatic skeleton?


  skeleton formed by a fluid filled compartment within the body called coelom
• what is a peduncle?


  the stalk like part of the organ attached to an animals body
• what is the plane of symmetry for brachipods?


  sagittal
• what does the name ectoprocta mean?

  anus is on the outside
• the difference between a two way digestive system from a one way?


  the 2 way connects mouth to anus the one way separates the flow of waste
• what is a pharynx?


  back of the throat muscle for swallowing
• what is a crop?


  part of body that moistens food
• what is a gizzard?


  part of body that grinds food
• what is a cloaca?


  shared opening for 2 or more systems
• what plylum has a corona?


  rotifers
• what is a mastax?


  it is the grinding pharynx found in rotifers