Mr and Mrs Smith's Life Science

SciEarthworm.jpg (5644 bytes) WORM PHYLA TABLE   Name ___________________  Per _______

Comparison of Characteristics in the 3 Phyla of Worms

Characteristic Flatworms Roundworms Segmented Worms
Scientific name of the phylum .
                     
.                           .
Number of tissue layers .
. .
Symmetry:
Radial, Bilateral, or
Asymmetrical
.
. .
Separate sexes or Both .
. .
Mostly parasitic or
       Mostly free living
.
. .
Digestive System     Yes or No? .
. .
Nervous System      Yes or No?
   
Excretory System    Yes or No?
   
Circulatory System   Yes or No?
   
Body: 
Segmented or Non-Segmented
.
. .
Digestive tract:
Mouth or Mouth and Anus
.
. .
No coelom or Pseudocoelom or True coelom? Choose one. .
. .
Examples