Life Science Grade 11

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Grade 11 Life Sciences Lesson Plansthroughout the organism’s bodyArthropoda and Chordata• The phylum Arthropoda is the largest of all phyla andcontains a wide variety of organisms such as chilapods(centipedes), diplopods (millipedes), crustaceans (crabsand shrimp), arachnids ( spiders and scorpions) andinsects (bees, butterflies, grasshoppers)• The phylum Chordata are characterised by thepresence of a notochord (primitive spine)• Chordates may be vertebrates which possess a spinalcolumn• Examples of vertebrates are Osteichthyes (bony fish),Chondrichthyes (cartilaginous fish), Amphibia (frogs),Reptilia (snakes and lizards), Aves (birds) and Mammalia(humans, rats, whales)• Both Arthropods and Chordates are found in a widevariety of habitats and may be aquatic or terrestrial• Both Arthropods and Chordates are bilaterallysymmetrical, triploblastic with a coelom and have athrough gut• The coelom in arthropods is greatly reduced andcontains reproductive organs and large blood – filledspaced called haemocoels (open blood system)2.3 Conclusion• Allow learners to provide feedback on the variousanimal phyla.HomeworkTextbook activityLearners provide feedback on their tables.5 min5 minSolutions for all classroom activity 6p104, Classroom activity 7 p 106,classroom activity 8 p107Understanding Life Sciences Activity1.3.5 p97; Activity 1.3.6 p99, Activity1.3.7 p100Understanding Life Sciences Acitvity1.3.4 p95Term 1 Page 76© Gauteng Department of Education (CAPS version)
Grade 11 Life Sciences Lesson PlansReflection / Notes:Name of Teacher:Sign:Date:HOD:Sign:Date:Term 1 Page 77© Gauteng Department of Education (CAPS version)
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Life Science Grade 11

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