Biology Guides SS 2 The Organism at Work
BIOLOGY THEME – THE ORGANISM AT WORK TOPIC 1 – DIGESTIVE SYSTEM INSTRUCTIONAL MATERIALS 1. Dissected specimens showing the alimentary canals of earthworm, bird and rabbit 2. Specimens and/or charts of digestive system of housefly, butterfly, cockroach, sheep and dog 3. Diagrams of mouth parts of some insects 4. Teeth models of some