1. CIENCIAS DE LA NATURALEZA 1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 3: Life on Earth http://www.ancientlifepublishing.com/

2. WHAT IS A LIVING THING? 1) All the organisms in the biosphere are able to perform three vital functions: - Nutrition, - Interaction, and - Reproduction 3.1.LIVING ORGANISMS http://www.schoolsnet.com/pls/hot_school/s n_lessons.page_pls_lesson_detail?x=1618 0339&p_lesson_id=88&p_res_type_id=15 Here in you can find more characteristics of the living organisms. Make a list and resume all of them in a few words in your notebook

3. WHAT IS A LIVING THING? 1) The three vital functions:There are two kinds of nutrition: -AUTOTROPHIC ANDHETEROTROPHIC Autotrophs produce their own food by taking water, CO 2 and mineral substances from the environment Heterotrophs obtain their food by eating other organisms or their remains 3.1.LIVING ORGANISMS

4. AUTOTROPHIC NUTRITION Autotrophs produce their own food by taking water, CO2 and mineral substances from the environment Photosynthesis 3.1.LIVING ORGANISMS

5. HETEROTROPHIC NUTRITION Heterotrophs obtain their food by eating other organisms or their remains Cellular respiration 3.1.LIVING ORGANISMS

6. “ The Lion King” and its associated characters are the property of Walt Disney Pictures, Incorporated. In the film “The Lion King” Mufasa explains to his son Simba how all living things are connected: “Antelopes eat the grass, lions eat antelopes, but when the lions die, their bodies become food for the grass, and so the ‘circle of life’ goes on….” 3.1.LIVING ORGANISMS Autotrophs and heterotrophs are closely related each others

7. WHAT IS A LIVING THING? 1) All the organisms in the biosphere are able to perform three vital functions: -Interaction: Living organisms are able to sense changes in their environment and react in order to survive http://www.clam-arte.com.ar/pintor.gif 3.1.LIVING ORGANISMS

8. WHAT IS A LIVING THING? 1) All the organisms in the biosphere are able to perform three vital functions: -Interaction: Living organisms are able to sense changes in their environment and react in order to survive http://www.youtube.com/ watch?v=Ze8NV7cvW8k Plants grow towards the light http://www.youtube.co m/watch?v=yps7pgq1 TAk&feature=fvsr Animals detect food and move towards it 3.1.LIVING ORGANISMS

9. WHAT IS A LIVING THING? 1) All the organisms in the biosphere are able to perform three vital functions: - Reproduction: Organisms produce descendants that maintain their characteristics 3.1.LIVING ORGANISMS

10. WHAT IS A LIVING THING? 1) Reproduction can be … Asexual Sexual http://www.youtube.com/watch?v= gEwzDydciWc&feature=related 3.1.LIVING ORGANISMS

11. WHAT IS A LIVING THING? 2) All the living beings in the biosphere are made up of similar substances 3.1.LIVING ORGANISMS

12. WHAT IS A LIVING THING? 2) All the living beings in the biosphere are made up of similar substances Water (65-90 %) 3.1.LIVING ORGANISMS

13. WHAT IS A LIVING THING? 2) All the living beings in the biosphere are made up of similar substances Water (65-90 %) Substances rich in carbon (10-30 %) 3.1.LIVING ORGANISMS CARBOHIDRATESNUCLEIC ACIDS LIPIDSPROTEINS

14. WHAT IS A LIVING THING? 2) All the living beings in the biosphere are made up of similar substances Water (65-90 %) Substances rich in carbon (10-30 %) Mineral substances (1-5 %) 3.1.LIVING ORGANISMS

15. WHAT IS A LIVING THING? 3) All the living beings in the biosphere are formed by cells A cell is the smallest unit of a living thing capable of performing the three vital functions: nutrition, relation, and reproduction. http://www.youtube.com/wa tch?v=hOLAGYmUQV0 3.1.LIVING ORGANISMS

16. Cells were discovered by using a microscope By Robert Hooke (1665) The first cell description ever 3) All the living beings in the biosphere are formed by cells In a cork 3.1.LIVING ORGANISMS