Earthworm Exploration
By Clarise Trinh, PAP Bio, Guzman, P4
Objectives
Background Information
Basically, earthworms eat nutrients in soil and breathe through their skin. They have segments along the entire length of their body and a dorsal and ventral side. Instead of a heart, earthworms have five aortic arches. Earthworms have bilateral symmetry, protostome development, and a coelom (a fluid-filled body cavity).
Earthworms enrich and improve the quality of soil.
Internal Anatomy
Digestive System
External Anatomy
Wormy Wisdom
A worm does not have legs, arms, or eyes.
There are about 2700 different types of worms.
In one acre of land, there can be more than a million earthworms.
The largest earthworm ever found was in South Africa and measured 22 feet from its nose to the tip of its tail.
Worms are cold blooded animals.
If a worm's skin dries out, it will die.
Worms are hermaphrodites.
Worms can eat their weight each day.
Earthworm Movement
Works Cited
http://www.biologyjunction.com/earthworm_dissection.htm
http://standardnote.blogspot.com/p/practical.html
http://www.angelfire.com/oh5/ghsbiology/rbioLabReport.htm
http://bio.rutgers.edu/~gb102/lab_2/annelida/306c2m.html
http://itzybitzyfarm.com/winter-garden-prepping/