thin layer of tissue that civers the body organs of mollusks
main body of mollusks
organs that exchange O2 and CO2
tonge-like organ with rows of teeth
space between the soft body and the mantle
bristle-like structures that are used to hold on to the soil
refers to the front end
refers to the back end
sac used for storage
a structure that grinds-up the soil and orgnic matter
heart-like structures in a worm
fleshy outgrowths on the segments of free-swimming polychaetes
parts of an animla that stick out from the main body
hard outer covering that supports and protects the internal body
the shedding and repacement of the exoskeleton
openings on abdomen and thorax where air enters and gasses leave
a series of changes in body form as an organism grows
the head and ches region in spiders
where O2 and CO2 exchanged in spiders
five pairs of appendages on abdomen in crustaceans
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