1. Homework Page 411 summarizing the concepts sections 1 and 2 Lesson 38 Honors Biology

2. Character Education Species interact with each other in nature, humans interact with all species great and small through our normal actions Lesson 38 Honors Biology

3. Objectives Test on chapters 18/19 Compare the 4 types of species interactions Give some examples of species interactions Define parasitism Define commensalism Define mutualism Define predation Lesson 38 Honors Biology

4. Class Notes Parasites: co-evolve with their hosts, rarely kill the host, and are smaller than the host A tick feeding on a human is an example of parasitisim Flowering plants and bees have a mutual relationship (they both benefit) Cattle egrets that follow cattle is an example of commensalism (the bird benefits and the cattle are not effected) Lesson 38 Honors Biology

5. Notes continued Predator – Prey : is between animals, the predator kills and eats the prey for food Lesson 38 Honors Biology

6. Project Item / Film Project Item # 68 The 4 species relationships Films: 16mm #22 Kingdom Protista symbiotic relationships 16mm parasites #81 494.2 Human parasites ‘Eaten Alive’ 785Human parasites 151.3 prehistory predator prey 30 min 394.2 sharks-seals Airjaws 60 min predator-prey Lesson 38 Honors Biology