3. Click on a lesson name to select. Chapter 1 The Study of Life Section 1: Introduction to Biology Section 2: The Nature of Science Section 3: Methods of Science

4. Ch 1.1 Objectives: Define biology Identify possible benefits from studying biology Summarize the characteristics of living things

5. Biology—the science of life Chapter 1 The Study of Life  Study how living things interact with one another 1.1 Introduction to Biology

6. What do biologists do?  Study the diversity of life  Research diseases The Study of Life  Develop technologies  Improve agriculture  Preserve the environment 1.1 Introduction to Biology Chapter 1

7. The Eight Characteristics of Life 1. Made of one or more cells 2. Displays organization (cells, tissues, organs etc) 3. Grows and develops (increases in mass and develop different abilities.) 4. Reproduces The Study of Life 1.1 Introduction to Biology Chapter 1

8. 5. Responds to stimuli (ex. Rabbit running away from a coyote, coyote is the stimulus and running away is the response) 6. Requires energy: autotroph or heterotroph 7. Maintains homeostasis- Regulation of an organism’s internal conditions to maintain life. 8. Adaptations evolve over time - an inherited characteristic that results from changes to a species over time. The Study of Life Chapter 1

9.  Specialized cells are organized into groups that work together called tissues. REVIEW Displays Organization The Study of Life  Tissues are organized into organs.  Organ systems work together to support an organism. 1.1 Introduction to Biology Chapter 1

10. REVIEW Responds to Stimuli The Study of Life  Anything that is part of the internal or external environments and causes some sort of reaction by the organism is called a stimulus.  The reaction to a stimulus is a response. Venus flytrap 1.1 Introduction to Biology Chapter 1

11. Textbook link http://www.glencoe.com/ http://www.glencoe.com/

12. The Study of Life  Scientific inquiry begins with observation.  Ex. The population of bees is decreasing  Followed by asking questions and processing information from a variety of reliable sources.  Ex. Why is the population of bees decreasing?  Inference is a logical conclusion based on your observation 1.3 Methods of Science Scientific Method: Chapter 1

13. The Study of Life  Form a hypothesis: a testable explanation of a situation.  If hypothesis is supported by data from additional investigations, usually it is considered valid.  Ex. The population of bees is decreasing due to the destruction of their habitat. 1.3 Methods of Science Chapter 1

14. Collect the Data The Study of Life  conduct an experiment: he/she investigates a phenomenon in a controlled setting to test a hypothesis. 1.3 Methods of Science Chapter 1

15. Controlled Experiments The Study of Life  A control group in an experiment is a group used for comparison.  Ex. Flower given water  The experimental group is the group exposed to the factor being tested.  Ex. Flower given vitamin water 1.3 Methods of Science Chapter 1

16. Experimental Design The Study of Life  Independent variable— X-axis - only one factor in a controlled experiment can change. Changes independently of the other variable at a time.  Ex. Time (month)  Dependent variable— y-axis - results from or depends on changes to the independent variable.  Ex. Temperature (degrees F) 1.3 Methods of Science Chapter 1

17. Data Gathering The Study of Life  Data—information gained from observations.  Quantitative data can be measurements of time, temperature, length, mass, or other factors.  Qualitative data are descriptions of what our senses detect.  Example: sour, sweet etc. 1.3 Methods of Science Chapter 1

18. Analyze the Data (DON’T COPY) The Study of Life  A graph of the data makes the pattern easier to grasp.  Even when a hypothesis has not been supported, it is valuable. 1.3 Methods of Science Chapter 1

19. Report Conclusions (DON’T COPY) 1.3 Methods of Science The Study of Life  If the reviewers agree on the merit of the paper, then the paper is published for review by the public and use by other scientists. Chapter 1

20. Uses Scientific Theory  A theory is an explanation of a natural phenomenon supported by many observations and experiments over time. The Study of Life  The results are always the same. 1.2 The Nature of Science Chapter 1

21. Scientific Method Overview 1.Observe 2.Ask question 3.Construct hypothesis 4.Experiment 5.Review data 6.If hypothesis is true, report the data… if false revise hypothesis and try again!

22. Graphing checklist Determine type of graph to create Determine which variable is dependent and independent Dependent variable goes on y-axis Independent variable goes on x-axis Label both axis and include units (ex. Height of flowers (cm) Consistent ranges on axis (ex. 5,10,15,20)(ex. 1,2,3,4) Ranges may differ between x and y axis Make graphs large Include a descriptive title (ex The Effect of Vitamin Water Versus Water on Strawberry Plant Growth)

23. Lets practice!  Graphing – cell sizes  http://learn.genetics.utah.edu/content/be gin/cells/scale/ http://learn.genetics.utah.edu/content/be gin/cells/scale/ Graphing Effect of Temperature on Chirping –Data can be found on Page 14 in text book

24. The Study of Life Chapter 1

25. Chapter Resource Menu The Study of Life Chapter Diagnostic Questions Formative Test Questions Chapter Assessment Questions Standardized Test Practice biologygmh.com Glencoe Biology Transparencies Image Bank Vocabulary Animation Click on a hyperlink to view the corresponding feature. Chapter 1

26. 1.A 2.B 3.C 4.D CDQ 2 A. observation B. hypothesis C. experiment D. constant Chapter Diagnostic Questions The Study of Life Chapter 1 What is a testable explanation?

27. CDQ 3 1.A 2.B 3.C 4.D The Study of Life Chapter 1 Chapter Diagnostic Questions A. made of one or more cells B. grows and develops C. capable of rational thought D. maintains homeostasis Which is not a characteristic of all organisms?

28. 1.A 2.B 3.C 4.D FQ 2 The Study of Life A. adaptation B. development C. growth D. maturation Chapter 1 1.1 Formative Questions What is the process of change that takes place during the life of an organism?

29. FQ 3 1.A 2.B 3.C 4.D The Study of Life A. acquiring energy B. adapting to the environment C. displaying organization D. responding to stimuli Chapter 1 1.1 Formative Questions Some species of plants begin opening their flowers in the morning when they are exposed to sunlight. What characteristic of living things does this represent?

30. 1.A 2.B 3.C 4.D FQ 4 The Study of Life A. adaptation B. equilibrium C. homeostasis D. metabolism Chapter 1 1.1 Formative Questions What process regulates an organism’s internal conditions and keeps them stable?

31. 1.A 2.B 3.C 4.D FQ 5 A. a body of knowledge about a natural phenomenon B. a creative tool for designing investigations C. a scientific inquiry that seeks to provide an explanation D. an explanation supported by observations and experiments The Study of Life Chapter 1 1.2 Formative Questions What is a theory?

32. 1.A 2.B 3.C 4.D FQ 10 The Study of Life A. a defined question B. a curious assumption C. a tested inference D. a testable explanation Chapter 1 1.3 Formative Questions What is a hypothesis?

33. 1.A 2.B FQ 12 The Study of Life Chapter 1 1.3 Formative Questions In order for scientific experiments to be valid, they must be based on scientific methods that use controlled experiments. A. true B. false

34. 1.A 2.B 3.C 4.D CAQ 1 The Study of Life A. forensics B. natural law C. theory D. physics Chapter 1 Chapter Assessment Questions Identify the term used to describe an explanation of a natural phenomenon supported by observation and experimentation.

35. 1.A 2.B 3.C 4.D CAQ 2 The Study of Life A. control group B. experimental group C. dependent variable D. independent variable Chapter 1 Chapter Assessment Questions In a controlled experiment, which factor can change?

36. The Study of Life Look at the figure below. Why is scientific data often displayed in graphs? Chapter 1 Chapter Assessment Questions CAQ 3

37. Answer: Graphs help show patterns in the data and make it easier to understand. The Study of Life Chapter 1 Chapter Assessment Questions CAQ 4

38. 1.A 2.B 3.C 4.D STP 4 The Study of Life A. food containing Razatrin B. food without Razatrin C. food containing another drug D. food containing a variety of drugs Chapter 1 Standardized Test Practice Scientists use laboratory rats to test the effects of a new drug, Razatrin. What do rats in the control group receive?

39. 1.A 2.B STP 5 The Study of Life Chapter 1 Standardized Test Practice B. number of days A. mass Which is the dependent variable in this experiment?

40. The Study of Life Glencoe Biology Transparencies Chapter 1

41. The Study of Life Image Bank Chapter 1

42. Vocabulary The Study of Life biology organism organization growth development reproduction species Section 1 stimulus response homeostasis adaptation Chapter 1

43. The Study of Life science theory peer review metric system SI forensics ethics Vocabulary Section 2 Chapter 1

44. The Study of Life observation inference scientific method hypothesis serendipity experiment control group experimental group independent variable dependent variable constant data safety symbol Vocabulary Section 3 Chapter 1

45. The Study of Life Chapter 1  Visualizing Scientific Methods Visualizing Scientific Methods Animation

46. The Study of Life Chapter 1