Open Ended Investigation on Earthworms

Open Ended Investigation - Biology Year 11 By David Vineburg, Daniel Glynn and Thomas Marsland Weighting: 15% Due Date: Monday 8th September Learning Experiment Aim: to test the learning ability of earthworms in two completely different environments. Apparatus: Shoeboxes x3 Sticky tape One earthworm Soil Sandpaper Water Sliced apple Sand Sliced donut Variables: Method: 1. Connect shoeboxes in a T shape using sticky tape to keep them together. 2. Take the lid of one side of the T off …

…arranged hearts. The digestive system consists of a muscular pharynx, a slender oesophagus, a thin-walled crop or food receptacle, a muscular gizzard used for grinding ingested earth, and a long, straight intestine. Identify and explain the interactions of biotic and abiotic factors in the ecosystem? Abiotic - light intensity temperature range type of soil or rock pH level (acidity or alkalinity) water availability dissolved gases level of pollutant Biotic - parasitism disease predation Earthworm Drawings