Biological Scientists

  • Theophrastus
    300

    Theophrastus

    classifies 500 plants
  • William Harvey

    William Harvey

    first to write in detail about systemic circulation
  • Anton van Leeuwenhoek

    Anton van Leeuwenhoek

    first observes living bacteria
  • Thomas Malthus

    Thomas Malthus

    wrote a book about populations and the factors effecting demographics
  • Edward Jenner

    Edward Jenner

    used cowpox to immunixe against smallpox
  • Howard Florey & Ernst Chain

    Howard Florey & Ernst Chain

    – isolate penicillin and create the first antibiotic drug
  • Charles Darwin

    Charles Darwin

    proposed Natural Selection
  • Florence Nightingale

    Florence Nightingale

    laid the foundation of professional nursing
  • Louis Pasteur

    Louis Pasteur

    invents sterilisation
  • Robert Koch

    Robert Koch

    proves Bacillus anthracis causes anthrax
  • Joseph Lister

    Joseph Lister

    uses sterile surgical techniques
  • Clara Barton

    Clara Barton

    established the Red Cross
  • Karl Landsteiner

    Karl Landsteiner

    determined 3 of the 4 blood types (A,B, and O)
  • Paul Ehrlich

    Paul Ehrlich

    envents Salversan, a drug for syphilis
  • Sir Alexander Fleming

    Sir Alexander Fleming

    discovered penicillin
  • Dr.Charles Drew

    Dr.Charles Drew

    First to separate blood plasma
  • Jonas Salk

    Jonas Salk

    an injectible polio vaccine is introduced
  • Albert Sabin

    Albert Sabin

    developed an oral polio vaccine
  • Gregor Mendel

    Gregor Mendel

    father of modern genetics
  • Carl Woese

    Carl Woese

    named the 6th kingdom and 3 domains