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Biology Lab Sheet

sponge I -phylum = porifera -symmetry = none -tissue = no true tissues -body cavity = none -digestive opening = intracellular digestion -circulatory = water transported through body -habitat = aquatic respiratory = cells; directly across membranes
hydra I -phylum = cnidaria -symmetry = radial -tissue = 2 layers -body cavity = none -digestive opening = 1 into GVC -circulatory = cells come into contact with water -habitat = aquatic -respiratory = cells; directly across membrane
planarian I -phylum = platyhelminthes -symmetry = bilateral -tissue = 3 layers -body cavity = acoelomate -digestive opening = 1 into GVC -circulatory = none -habitat = aquatic -respiratory = cells; directly across membrane
roundworm I -phylum = nematoda -symmetry = bilateral -tissue = 3 layers -body cavity = pseudocoelomate -digestive opening = 2; tube within a tube -circulatory = none; transport in psudocoelom -habitat = parasitic -respiratory = none; essentially anarobic
clamworm/earthworm I -phylum = annelida -symmetry = bilateral -tissue = 3 layers -body cavity = eucoelomate -digestive opening = 2 -circulatory = closed with blood vessels -habitat = clamworm aquatic, earthworm terrestrial -respiratory = skin, parapodia
clam I -phylum = molluska -symmetry = bilateral -tissue = 3 -body cavity = eucoelomate -digestive opening = 2 -circulatory = open, heart, blood vessels, sinuses -habitat = aquatic -respiratory = gills
sponge II -excretory = none -locomotion = none; sessile (stationary) -support = spicules/spongin -segmentation = no -appendages = no -NS = none
hydra II -excretory = none -locomotion = limited using tenticles -support =water; hydrostatic skeleton -segmentation = no -appendages = broadly defined tentacles -NS = no brain; network of nerve cells
planarian II -excretory = flame cells; 2 lateral excretory canals -locomotion = creep over surfaces by crawling -support = water; hydrostatic skeleton -segmentation = no -appendages =no -NS = brain; 2 ventral nerve cords; "ladderlike" nervous system
roundworm II -excretory =2 lateral lines -locomotion =live in gut; limited movement -support =hydrostatic skeleton -segmentation= no -appendages =no -NS = dorsal and ventral nerve cord
clamworm/earthworm II -excretory = nephridia -locomotion = clamworm swims, earthworm crawls -support =hydrostatic skeleton -segmentation=yes -appendages =clamworm parapodia, earthworm none -NS = dorsal brain, ventral nerve cord
clam II -excretory = nephridia -locomotion = foot for digging -support =external shell -segmentation= no -appendages =none -NS = 3 ganglia connected by nerves
Created by: studystack_0325