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Chapter 1: The Study of Life
Ms. Calderon Biology B-9
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8/16—8/20 Daily Warm-Up Thursday:
1. State the difference between the independent variable and the dependent variable. 2. Why must an experiment (theory) be peer reviewed? Independent—manipulated factor (what you are changing) Dependent—measured factor (what are you measuring) To validate if it is true.
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8/16—8/20 Daily Warm-Up Friday: 1. What is a pseudoscience?
2. What would examples of pseudosciences be?
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Table of Contents Week Title of Assignment Page # 2
/16-8/20 Daily Warm Ups Chapter 1 Vocabulary Chapter 1.1 Notes Chapter 1.1 Worksheet Chapter 1 Section 2 & 3 Notes Chapter 1 Section 2 Worksheet Chapter 1 Section 3 Worksheet 10-11 12--?
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Chapter 1 Section 1 Notes Introduction to Biology
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Meaning of Biology Bio- Greek word– bios which means life.
Logy- Greek word – logos which means study. So Biology means…the study of life.
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The Study of Life: You will study:
When people study living things or pose question about how living things interact with the environment they are learning about biology. You will study: Origins & history of life and once living things Structures of living things How living things function How living things interact with one another
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What do Biologists do? Make discoveries
Seek explanations by performing labs and field investigations Study the diversity of life Research diseases Human Genome Project Avian Flu (Bird flu) Anorexia Alcoholism Cancer Alzheimer’s
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What do Biologists do? Develop technologies Improve Agriculture
Bionic hand Dialysis machines Blood transfusions Improve Agriculture Develop ways for plants to grow in poor soil or to resist insects, fungal infections or prevent from frost damage. Preserve the environment Reproducing endangered species Protection of environmental niches Recycling programs
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The Characteristics of Life
1. Made of one or more cells Cells are the basic unit of life. 2. Displays organization Structures are organized for function 3. Grows & Develops Development allows for different abilities 4. Reproduces Pass along traits from 1 generation to the next 5. Responds to stimuli Reacts to internal and external stimuli 6. Requires energy Must intake food 7. Maintains homeostasis Able to keep internal conditions stable 8. Adaptations evolve over time Inherited changes occur over time to help the species survive.
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Chapter 1 Section 2 & 3 Notes
What is Science? Methods of Science
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What is Science? It is a body of knowledge based on the study of nature. It incorporates theory into finding solutions to various problems. Theory: an explanation of a natural phenomenon supported by many observations and experiments over time. Opposite of a pseudoscience A science that tires to imitate “science” often driven by cultural or commercial goals.
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How can you tell if a theory is true?
1. Evidence 2. Scientific Knowledge 3. Challenged 4. Question Results 5. Test claims 6. Peer review 7. Uses the metric system
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Methods of Science 1. Ask a Question 2. Perform Research
A. Observation (scientific inquiry) B. Inferences (making assumptions) 2. Perform Research Understand the background of your specimen or objects involved 3. Form your Hypothesis
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Methods of Science 4. Collect Data
A. Conduct experiment—a controlled setting testing the hypothesis B. Control group—original group (not exposed to change) C. Experimental group—change the stimulus D. Independent variable—a tested factor effecting the outcome of the experiment E. Dependent variable—depends on changes due to the independent variable F. Constant—remains unchanged while dependent & independent variable change G. Data—information gained from observations
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Methods of Science 5. Analyze Data 6. Report Conclusions
A. Has it supported my hypothesis “is it true?” B. “Do I need more data?” 6. Report Conclusions A. Peer Review B. Competency of scientific method C. Accuracy D. Suggest other explanations E. Conclusion statement
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Qualitative vs. Quantitative
The objective of quantitative research is to develop and employ mathematical models, theories and/or hypotheses pertaining to phenomena. Qualitative: The qualitative method investigates the why and how of decision making, not just what, where, when 4 Questions 1 Summary ( 3 sentences in length)
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