Chapter 14: Exam Prep Flashcards
(22 cards)
Animals with 3 well defined germ layers and that have one solid mass of tissue rather than tissues and organs nestled inside a body cavity are
acoelomate and triploblastic
A planarian feeds by
Scraping and sucking food particles via a mid ventral proboscis
In flame cells
Flagella drive fluids through tubules for excretion
The nervous system of a freshwater planarian consists of
A simple brain of ganglion cells leading to a ladder type nerve network
Which of the following statements about planaria is NOT true?
The rudimentary circulatory system has a small central heart
The mono genetic flukes
Are mostly ectoparasites
The correct sequence of development in a typical fluke cycle is
Egg, miracidium, sporicyst, cercaria
The blood fluke Schistosoma is
an endoparasite and a Digenean
A farmer in a rice paddy in Asia becomes infected with the liver fluke by
Eating infected fish that is undercooked or uncooked
How are schistosomes unique, compared to other trematodes?
They have separate male and female individuals, and the male is larger
The long chains of bags of eggs, which hang behind the head of a tapeworm, is called a
Strobilia
The region used for attachment of a tapeworm is called the
Scolex
How could you become infected with adult tapeworms?
Eating insufficiently cooked pork
Platyhelminthes have
Flame cells
Turbellarians have light sensitive organs called ____\ or eyespots
ocelli
Most monogeneans are external parasites of
Fish
The main reproductive body “segment” of the cestode is called the
proglottid
The mastic of a rotifer is used for
Capturing and grinding food
Besides “hunters” that seize prey, some to rotifers are
“trappers” that grasp prey and draw it into the rotifer mouth
Rotifers combine ovaries and yolk glands to form a _____ that supplies yolk to eggs through cytoplasmic bridges
Germovitellaria
Fertilization in rotifers is achieved
By hypodermic impregnation injecting sperm into the pseudocoel
Acanthocephalans
Parasitize birds and mammals
