The study of biology

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The study of biology

  1. 1. The study of biology What we have learned: Life is always changing….. On the level of DNA…… Change = Evolution Evolution is the backbone of biology.
  2. 2. Life is Diverse Biodiversity refers to the many different types of organisms on earth. Taxonomy is the biological science that classifies life according to evolutionary relationships. The Domain is the largest group of organisms. 3 Domains, 6 Kingdoms
  3. 3. Life is Diverse
  4. 4. Life is Diverse Living things are organized into different categories based on similarities Chapter 1 What is Life? Kingdom Phylum Class Order Family Genus Species K ings P lay C hess O n F unny G reen S quares
  5. 5. Life is Diverse Chapter 1 What is Life? Human classification scheme: Domain Eukarya Kingdom Animalia Phylum Chordata Class Mammalia Order Primates Family Hominidae Genus & species Homo sapiens
  6. 6. Life is Diverse Chapter 1 What is Life? A Short Quiz: 1. What is the order of classification? 2. Which has more critters in it: an order or a genus? 3. What is taxonomy? 4. The scientific name includes the _____ and _____ name.
  7. 7. How do we study the Natural World? Chapter 1 What is Life?
  8. 8. How do we study the Natural World? Chapter 1 What is Life? What is the Scientific Method? Methodical exploration This is what makes science unique!
  9. 9. How do we study the Natural World? Chapter 1 What is Life? Question Hypothesis Prediction Observations Now What???
  10. 10. How do we study the Natural World? Chapter 1 What is Life? Experiment Question Hypothesis Prediction Observations
  11. 11. How do we study the Natural World? Chapter 1 What is Life?
  12. 12. How do we study the Natural World? Chapter 1 What is Life? After you perform your experiment, you need to analyze the generated data. Does the data support or not support your hypothesis? <ul><li>If your data does not support the hypothesis then…… </li></ul><ul><li>pose another question/hypothesis </li></ul><ul><li>identify errors in the experiment and redo it </li></ul><ul><li>If your data does support your hypothesis…….. </li></ul><ul><li>retest the hypothesis using the same experiment and altered experiments </li></ul>
  13. 13. How do we study the Natural World? Chapter 1 What is Life? What is difference between hypothesis, theory & law? Hypothesis - “an educated guess”; a tentative explanation of phenomena. Theory - a widely accepted explanation of natural phenomena; has stood up to thorough & continual testing. Law - a statement of what always occurs under certain conditions.
  14. 14. How life is studied Chapter 1 What is Life? A Short Quiz: 1. What is the scientific method? 2. What things lead up to an experiment? 3. What happens after conclusions are drawn? 4. How are theories different than laws?

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