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6th - science


worms and mullusks invertebrates without external skeletons
castings the soil that passes through an earthworm's body
shell a hard covering
univalve one shelled mullusk
1) swallows soil 2) only decayed plans and animal matter is digested by worm interesting characteristics of earth worm
1) enriching the soil 2) keeping the soil light and loose 2 important jobs of earthworm
setae moveable bristles
how many setae are on each segment? 8
parasite worms - examples? leeches, tapeworms, roundworms
fastens on the skin of the host and sucks its blood - ew!! leech
grows inside the intestine of the host, robbing it of important nutrients - ew, ew! tapeworms
can live in the lymph nodes, intestine, and even the muscle of the host - gross! roundworms
gastropod "stomach foot"
farmer's enemy? snail
does not have a shell slug
2 matching fan shaped shells bivalves
examples of bivalves? mussels, clams, scallops
cephalopods "head foot"
examples of cephalopods? octopus, squid, cuttlefish, nautilus
sea star has how many rays? five or more
have two rows of tiny tube feet (little suction cups) sea stars
looks like a pin cushion sea urchin
feeds on plant and animal matter that if finds in the water sea urchin
family member of the sea urchin sand dollar
these range in size from a walnut to 12 feet in height!! sponges
these are "decorative deceivers" sea anemone (remember Nemo???)
looks like a flower on the ocean floor sea anemone
its petals are really tentacles and are always ready to catch a fish or crab - ikes! sea anemone
builds a base of limestone coral polyp
millions of empty cups are here ... coral reef
tiny freshwater invertebrate hydra
can change its location by using its tentacles, like to do somersaults :) hydra
each tentacle contains stinging cells with poison - ouch!!! jellyfish
these guys have many growth changes during its life jellyfish
they begin as larvae, fastening to an object, then grow into a polyp and mature its body jellyfish
the young adult of these is a free floating medusa jellyfish
this is actually a colony of several jellyfish creatures living and working together portuguese man-of-war
microscope invertebrates protozoans
smalles living unit in any living organism cell
the jellylike fluid that fills the cell cyptoplasm
directs the WORK of the cell nucleus
instructions for running the cell and making needed parts chromosomes
possibly as many as 45,000 different types of ... invertebrates
has no definite shape amoeba
amoebas move by pushing out projections called what? pseudopods
psuedopods are also called ... "false feet"
a shoe shaped protozoan, looks like a slipper paramecium
parameciums are covered with hair called ... cilia
Created by: kdeangelo