Zoology exam 1
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Zoology exam 1
to help study for the test
basic sponge with one way out the top and has ostium proteins.
group of choanflagelles, your basic intestine for obtaining food in the sponges.
currents flow through prosopyle and go through the canals and filtered out the top. secondary sponge
many holes and canals that flow through flagellated chambers to obtain food.
food aquisition of sponges
porocyte and choanocytes capture food
locomotion of sponges
no movements in adults
skeletal support of a sponge
spicules as bones
mesohyl as tissue
digestive swystem of a sponge
water flows in porocytes (protien holes in the sponge) and ostiums (actual open). choanocytes trap food and then archaenocytes absorb nutrients and grow into new spicules or tissue
sponge respiratory system
cell diffusion between cells
circulatory and excretory system of a sponge
distribution of nutrients through simple diffusion. when finished water is pushed out the osculum (top hole or exit of sponge)
nervous system of a sponge
no nervous system
reproduction of sponges
gemmules and buds asexually reproduce. eggs and sperm sexually reproduce with free swimming flagellated chambers. hope that sperm will flow into other sponge. release clouds of sperm.
hydra (small microscopic organism)
locomotion of the cnidarians
circular and longitudinal muscels to squrim and cooperate in water
diploblasty (epidermis and gastrodermis)
skeletal support of a cnidarian
cells that shoot nematocyst that captures food and falls in moth of cnidarian andf whole colony can absorb food through the nutritive muscular cells and
polyp vs. medusa
hydra or amenome
respiratory and circulatory system
simple diffusion of cells and water.
reproduction of cnidarians
asexual and sexual reproduction in hope that sperm will find egg
polyps into jellyfish
polyp either drops seed or releases a bud of a jellyfish
a strand of unorganized nervoustissue that covers the cnidarian
ovelli and statosyst
movement and sensory neurons along a cnidarian
digestive process of cnidarians
cnidocytes or nematocytes of it sting prey. open up mouth engulf it and gastrovascular cavity with gland cells release enzymes to break down food.
interstitial cells and archaeocytes
cells that excrete helpful adaptive or turn into new cells in the sponge and cnidarians
habitat of flat worms
marine, fresh, and terrestrial
motion of flatworms
no gut. simple intestine and free lives and parasitic. sticks to animals to eat the nutrients it doesn't
start of head
key characteristic of flatworms
skeletal system of flat worms
digestive system of flatworms
different forms. basic mouth pharynx and intesine
respiratory and circulatory system of a flatworm
no respiratory system. gas exchange occurs but they lack gills or lungs
reproduction of flatworms
penis fencing to determine sex and diffusion of sperm into the eggs. There is also asexual reproduction in parasitic versions.
anterior ganglion with longitudinal nerves that nonnect to the cerebral ganglion.
sensory of flatworms
statosyst and ocelli like in cnidarian
photo receptors in the eyes
on ventral side to pick up movement and thats where the mouth is.
mucous sheath body excretionto move through water.
flatworms and light
move away due to adaptation of colder wet and dark areas
flatworms male dominance
whoever dominates as male can swim away harmless where as the female is pregnant with eggs and has been stabbed
excretory system in flatworms
types of molluscs
no segmentation but attached to shells
skeletal support of the mollusk
no skeletal but they have a shell
digestive of bivalvia
digestive tract of most mollusks
radula, ciliary tracts internal and external. stomachs (liver and kidneys)
conveyor belt of teeth to bottom feed and crush substances
respiratory and circulatory system of molluscs
gills, lungs and lungs. exchange through mantle and surface. heart and vessels pulimary vessels.
reproductive of molluscs (gastropods)
free swimming. gastropods have a genetic code for twirling
nervous system of mollusc
ganglia rings that act as brain except in bivalvia. a lot of sensory neurons. photoreceptors.
excretory system of mollusc
usually in the mantle. bivalves have the different water flows
mantle of the mollusc
hold and protect organs. Some secrete a shell.
stab, stimulate, lay eggs and sperm. trochophore re
meaning of annelids
little rings, and segmentations
types of annelids
worms and leeches
grabing, living off other organism, leeches are parasitic
how they move annelids
circular and longitudinal muscle fibers. segmentation to dig.
start to see head and anus
skeletal support of annelids
hydro-static coelom. fluid that acts as skeleton. devided by septa. not in leeches
digestive system of annelids
complete digestive system. mouth, pharynx, esophogus, crop/gut, and anus
respiratory and circulatory system of annelids
closed blood flow with aorta arch. blood pumps segmentally. no respiratory system but they exchange gas through pores and gills if they have them.
excretory system of the annelids
nephredia which are cells that take waste out of the coelom and blood flow straight out the pores or anuz
regeneration and fissure and
circular and longitudinal muscles in annelids
hyrostatik skeleton of the annelid and the muscles work together to thin and and lengthen worm and then retract it.
dangers in annelids
unable to breath in water or dry land
paralysis of to much sun and light
locomotion difference than annelids
skeletal structure of nematodes
hydrostatic to withstand pressure and can live in digestive system
digestive system of nematodes
straight simple tube
resperatory and circulatory system
none. simple gas exchange in the membrane.
reproduction of nematodes
cycle of being eaten. eggs in feces or ground, infects parasitically or is eaten, go through circulatory system and lungs and liver, lays eggs and mate in the small intestine.
-has one mesoderm and lacks peritonium inner body cavity