Recommended
More Related Content
What's hot
What's hot (20)
Similar to Unit 2
Similar to Unit 2 (20)
More from sarascience
More from sarascience (20)
Recently uploaded
Recently uploaded (20)
Unit 2
- 1. UNIT 2: THE CLASSIFICATION OF LIVING THINGS
- 2. 1.- HOW DO WE CLASSIFY VERTEBRATE ANIMALS? Mammals Reptiles Vertebrates Fish Birds Amphibians
- 3. MAMMALS Their body is covered by skin and hair (fur) MAMMALS BODY RESPIRATION EXTREMITIES REPRODUCTION They have lungs They are viviparous. Female mammals produce milk to feed their babies Terrestrial mammals have four legs. Aquatic mammals have fins. Many mammals also have a tail
- 4. REPTILES REPTILES BODY RESPIRATION EXTREMITIES REPRODUCTION They have scales. Some reptiles have a hard shell (turtles) They have lungs They have four legs. (Snakes don`t have legs) They are oviparous: they are born from eggs
- 5. FISH FISH BODY RESPIRATION EXTREMITIES REPRODUCTION They breathe with their gills. They are oviparous: they are born from eggs They have a long body covered by scales They have fins and tail.
- 6. BIRDS BIRDS BODY RESPIRATION EXTREMITIES REPRODUCTION They have lungs They are oviparous: they are born from eggs They have aerodynamic bodies. Their bones are thin and light to fly. They have four extremities: two legs and two wings.
- 7. AMPHIBIANS AMPHIBIANS BODY RESPIRATION EXTREMITIES REPRODUCTION When they are young they have gills. When they become adults, they have lungs. They are oviparous: they are born from eggs They have thin, smooth skin. They have four legs. Many amphibians also have a tail.
- 8. Molluscs Coelenterates Invertebrates Porifera Echinoderms Arthropods Annelids 2.- HOW DO WE CLASSIFY INVERTEBRATE ANIMALS?
- 9. MOLLUSCS -They have soft bodies and most have a hard shell. -They breathe through gills. COELENTERATES -They have a soft body. -They have tentacles. jellyfish PORIFERA -They have a soft body with holes called pores. sponges ECHINODERMS -Their bodies are covered with sharp spikes. starfish ARTHROPODS -They have an exoskeleton. -Insects, spiders and crustacean are arthropods Insects spiders crustacean ANNELIDS -They have a long, soft body divided into segments. Worms leeches Mussels snails oyster INVERTEBRATE ANIMALS
- 10. 3. HOW CAN WE CLASSIFY PLANTS? Seed plants: they reproduce by seeds Plants Non-seed plants: They don`t have seeds.They reproduce by a special cells called spores. Ex. Fern and mosses Angiosperms: They produce flowers (flowering plants) Gymnosperms: They produce cones (conifers)
- 13. 4. WHAT ARE THE MONERA, FUNGI AND PROTISTA KINGDOM? FUNGI FUNGI BODIES They can be multicellular or unicellular. They consist of a cap, stem and hyphae. NUTRITION They produce a substance that breaks down plant and animal matter. REPRODUCTION They produce spores that are carried by the wind. Mould Mushrooms
- 14. MONERANS MONERANS BODIES They are unicellular organisms. NUTRITION They produce a substance that breaks down plant and animal matter. Bacterias REPRODUCTION They reproduce by dividing.
- 15. PROTISTA PROTISTA BODIES They can be multicellular or unicellular. NUTRITION Some of them contain chlorophyll and carry out photosynthesis Algae REPRODUCTION They reproduce by dividing or by spores.