BIOLOGY: SELECTED IMAGES
Chapters 1 (Science), 8 (Nutrition)





Skip to Nutrition


▶Biology is the scientific study of living things.   SO...   What is Science?   What is Life?

KEY TERMS:
Biology   Science   Hypothesis   Verifiable Falsifiable   Theory

Reasoning by Induction   vs   Deduction

Devising hypotheses:   Induction   Analogy   Flights of imagination

      —therefore the NEED TO TEST hypotheses

            Experimental vs Naturalistic tests







IS THIS IDEA  A SCIENTIFIC HYPOTHESIS?

       





ANY COMMENTS ABOUT DANAE'S STATEMENT?

       

       




Example of an experiment:
Lederberg & Lederberg's "Replica Plating" experiment.


Most bacteria are killed by streptomycin, but an occasional colony is found that is streptomycin-resistant and grows anyway.
Offsping of this colony are also streptomycin-resistant, showing that the antibiotic resistance is inherited as a genetic trait (a "mutation").
QUESTION: Did the streptomycin cause the mutation, or did the mutation happen before any exposure to streptomycin?

       






       



       



SCIENTIFIC COMMUNITIES and PARADIGMS:
The scientific community: Renaissance Europe;   Galileo;   Royal Society
    Skepticism vs Science Denial
    Paradigms;   Scientific revolutions



       


SCIENCE and SOCIAL (ETHICAL) ISSUES:
Deontological vs Utilitarian systems
Types of issues in science  


Use of animals as experimental subjects
Humans as experimental subjects




       



       



       



       















NUTRITION AND DIGESTION

PowerPoint slides


Water


Nutrition














Chart of digestion  

Nutrition (again)


Ques.1     Ques.2    


Circulation


Ques.3