characteristics of living organisms

• what are the 8 charactersitics shared between living organisms ?

  1. Movement
  2. Reproduction
  3. Sensitive to surroundings
  4. Homeostasis
  5. Growth
  6. Respire
  7. Excrete
  8. nutrition
• what is homeostasis ?


  The ability of an organism to maintain a stable internal environment .
• examples of eukaryotic organisms ?

  plants, animals, fungi
• are plants and animals multicellar or single-celled ?

  Multicellular
• describe the features of a plant ?

  • they are multicellular
  • they have chloroplasts
  • they store carbohydrates as sucrose or starch
• describe the features in an animal ?

  • they are multicellular
  • they do no have chloroplasts
  • most of them have a nervous coordination
  • they often store carbohydrate in the form of glycogen
  • they dont have cell walls
• describe the features in fungi ?

  • some are single celled
  • they cannot photosynthesise
  • they have cell walls made of chitin
  • they store carbohydrate as glycogen
• example of a type of fungi ?

  yeast
• are protoctists eukaryotic or prokaryotic organisms ?

  Eukaryotic
• describe the features of protoctists ?

  • they are single celled
  • they are microscopic
  • some have chloroplasts but some dont
• describe the features of bacteria ?

  • they are single celled
  • they are microscopic
  • they dont have a nucleus
  • they have a circular chromosomes of DNA
  • some can photosynthesis
  • they mostly feed of other organisms (can be living or dead)
• describe the features of viruses ?

  • they are particles
  • they can only reproduce inside a living cell
  • they infect all types of living organisms
  • they come in many different shapes and sizes
  • they have a protein coat around some genetic material
• what are pathogens ?

  they are organisms that cause diseases
• what are some examples of pathogens ?

  Bacteria, viruses, prototcists