Earthworm Antics
Earthworm Dissection Pre-AP Biology April 8th 2014 - GUZMAN
Lumbricus terrestris
Today's Objectives
Taxonomy and Evolution
Taxonomy
Human Impact
Ecology
Life Cycle
Habitat
As the name implies, earthworms inhabit the earth, or rather, more specifically, the soils of the earth. These earthworms fall into three main niche groupings: compost and soil (surface) dwellers, or epigeic; topsoil dwellers, or endogeic; and deep-burrowing subsoil dwellers (anecic).
Predation
Earthworm Dissection LabCast
External Anatomy
Internal Anatomy
Digestive System
Digestive System of the Earthworm
Digestive System in Relation to Other Systems
Fun Facts
- The largest earthworm recorded was found in Africa and was measured to be about 22 feet from tip to tail.
Even though worms don’t have eyes, they can sense light, especially at their anterior (front end). They move away from light and will become paralyzed if exposed to light for too long (approximately one hour).
Perform A Dissection Online!
Citations
http://www.bbc.co.uk/nature/life/Lumbricidae
http://animals.nationalgeographic.com/animals/invertebrates/earthworm/
https://www.naturewatch.ca/english/wormwatch/about/ecology.html
http://en.wikipedia.org/wiki/Earthworm
https://student.societyforscience.org/article/tiny-earthworms%E2%80%99-big-impact