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Home > The Earthworm
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The Earthworm
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Product Information
The lowly earthworm? Not by any means. Earthworms aerate the soil by forming tunnels as they swallow subsoil, they bring 18 to 20 tons of rich subsoil to the surface every year, and they enrich the soil with their wastes. In this set students learn just how important this "simple" creature is. 1. Mouth–w.m. (1x) and Clitellum–w.m. (1x) 2. Ovary–x.s. (300x) 3. Sperm–in seminal vesicle–x.s. (300x) and Male Gonopore–w.m. (1x) 4. Setae–x.s. (5x) 5. Digestion–s.s. (7x) 6. Ventral Blood Vessel–w.m. (1x) and "Heart"–w.m. (1x) 7. Nephridiopore & Epiderms–x.s. (100x) 8. Nervous System–w.m. (10x)
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