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Extent of Glaciation. Forest Without Worms. Forest With out Worms. Understory Without Worms. Understory With out Worms. Soil Horizon Without Worms. Soil Horizon With out Worms. Ovenbird. http://www.youtube.com/watch?v=v41-hFzfeRs. Nightcrawler L umbricus terrestris. - PowerPoint PPT Presentation
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Extent of Glaciation
Forest Without Worms
Forest Without Worms
Understory Without Worms
Understory Without Worms
Soil Horizon Without Worms
Soil Horizon Without Worms
Ovenbird
http://www.youtube.com/watch?v=v41-hFzfeRs
Nightcrawler Lumbricus terrestris
Redworm Lumbricus rubellus
Amynthas agrestris
