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Living things luis

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Living things luis

  1. 1. LIVING THINGS. 1 Life on Earth: Water, gases and the biosphere. Living things and life processes and human beings: Interaction, nutrition and reproduction. 2 Cells: All living organisms are formed by cells. They are unicellular organisms and others are multicellular organisms. 3 Classifying living things: We can classify living things into five groups. UNIT 5 BY LUIS MARÍN 1
  2. 2. 1 Life on Earth The Earth, the Sun and the Atmosphere: • The Earth is the only planet that we know that life exists.Our planet has got a lot of water in lakes, rivers, oceans and seas. • The atmosphere contains gases like: Oxigen and carbon dioxide. • The sun is important too, because it provides our planet with light and heat. Living things and life processes: • Animal interaction, nutrition and reproduction. • Human interaction, nutrition and reproduction. 2
  3. 3. 2 Cells. Cells: • All living organisms are formed by cells. • Some living things, like bacteria or yeast, have only one cell, they are unicellular organisms. Other living things, like trees and butterflies, have got more than one cell they are multicellular organisms. • Cells are living things because they perfom the basic life processes of interaction,nutrition and reproduction. The parts of a cell: • All animal and plant cells have got three basic parts:The membrane, the nucleus and the cytoplasm. In plant cells, there are also a cell wall otside the membrane. In the cytoplasm of plant cell there also a organelles called chloroplasts. How are cells organised? . Tissues, Organs and Systems. 3
  4. 4. 3 Classifying living things. The five kingdoms: Moneran. Fungus Prodist Plant Animal 4
  5. 5. THE END UNIT 5 SCIENCE Luis Marín Ortiz 5
  6. 6. The Earth 6
  7. 7. Cell of a plant Cell of a animal Circulatory system 7