Exam 2 Flashcards
ecdysis
the process of molting
holometabolous (butterfly)
complete metamorphosis
heimetabolosous
incomplete metamorphosis
ex. grasshoppers
what structure did wings evolve from?
gills
what do bugs use for circulatory system?
tracheal tubes. gives a high metabolic rate
explain tagmata
the segmentation of arthropods into head, thorax, and abdomen. each has own function
what kind of circulatory system do annelids have?
closed
what is the CLITellum on worms?
the band-aid looking part that stores the eggs
function of parapodia in annelids?
basically lil legs for movement
describe crop and gizzard in worms
crop stores food, gizzard uses rocks it eats to grind up food
metanephridium function (2 functions)
for excretion and osmoregulation
what are the tapeworms?
Cestoda
what are the non parasitic worms?
Turbellaria
monogenea are parasites in
gills of fish
trematoda are what type of flukes
endoparasitic
what is the excretory system of playzoa and what cells does it use?
protonephridia
uses flame cells to help propel fluids
metacercaria vs cercaria
(parasite life cycle)
metacercaria is where larva state where parasites encrust self to get digested
cercaria is later where parasite moves from intermediate host to definite
what is the attachment of parasites called?
haptor
what is proglottid (POOOOOP)
tapeworm egg released in host’s poopy
name for head of tapeworm LEXEE
scoLEX
rheoreceptors detect
water current
strobilation in jellyfish (reproduction)
asexual reproduction where things just fall off the jellyfish
ephyra in terms of strobilation of jellyfish
the things that fall off and turn into another jellyfish
gland cells are found where and what do they do
gastrodermis. they help begin extracellular digestion
what does the mesoglea do?
serve as skeleton
organ for balance and orientation
statocyst
what is a sac like body plan? (food/waste)
only one opening for food and for waste
difference between hydranth and gorangium in a polyp colony
hydranths is the eater
gorangium is the reproducer
what is the cell containing nematocytes?
cnidocytes
