Biology term 1

• Biology is a study of living Organisms
• Organisms studied in biology

  • Simplest unicellular Organisms
  • Most complex multicellular Organisms
• All living Organisms share certain characteristics
• Characteristics of living things

  • Movement
  • Excretion
  • Respiration
  • Reproduction
  • Irritability (sensitivity)
  • Nutrition
  • Growth
• Modern classification uses domain, kingdom, phylum, class, order, family, genus, species
• Visible characteristics of living organisms

  • Number of legs
  • Hairiness
  • Colour
  • Shape
  • Arrangement of veins
• Mitochondria produce energy through aerobic respiration.