Mindmap
phylum annelida (earthworm)
Inhalt der Mindmap
phylum annelida (earthworm)
characteristics
- segmented body
- rounded in cross section
- has clitellum (saddle)
- body cavity: coelome
- bristles (chaetae)
peristalsis
- body contracts, expands, shortens and lenghtens
benefits
- convert organic matter to humus
- improve soil structure by making channels in soil
- aids aeration and drainage
- mix layers through burrowing
- worm cast created by excretion
- high in nutrients
Informationen
- Beschreibung
- Higher level agricultural science (phylum's) Mindmap am phylum annelida (earthworm), erstellt von Rachel Hogan am 23/02/2016.
- Erstellt von
- Rachel Hogan
- Aufrufe
- 3
- Bewertung
Mehr zu Roundworms and segmented worms