Section1.1 - What is Biology?

Transcription

1 Ch 1: What is Biology? Section1.1 - What is Biology? Inside This Section... What is Biology? What is an Organism? The 5 Characteristics of Living Things. What is Biology? Biology is The Study of - Life - Study

2 What do Biologists Study? The interactions of The interactions with the They study problems and propose (i.e. medical treatment, disease prevention etc) All are Organisms Characteristics of Living Things Reproduction Growth and Ability to Adjust to Living Things Adapt and What is an Organism?

3 Am I an Organism? Organization All living things are composed of One or More Each cell contains All parts function together in an orderly living What is Reproduction? The production of Same Species They can They produce offspring

4 Growth and Development Growth: Gradual increase in over time. Results in more living material and forms new Development: All the that take place during the life of an organism Adjusting to the Environment Living Things are able to Adjust to their environment Environment: The of the organism - e.g. air, weather, temperature, other organisms and many other factors Adjusting to the Environment : Any condition that requires a response : Reaction to a stimulus : Maintaining conditions suitable for survival (takes energy)

5 Living Things Adapt and Evolve Adaptation: Any structure, behavior or internal process that enables an organism to respond to better and better in an environment Evolution: gradual accumulation of over time Over Time What is Biology? Recap Quiz: What is an Organism? What are the 5 Characteristics of Living Things? What is a Stimulus? What is Homeostasis? Ch 1: What is Biology? The Methods of Biology

6 Section 1.2 Inside This Section... The Scientific Method Controlled Experiments and Variables Scientific Tools Theories and Laws Section 1.2 The Scientific Method Section 1.2 The Scientific Method Make and collect data that lead to a Formulate Test Hypothesis: - Collect data Interpret State in a form that can be evaluated by others

7 Section 1.2 Examples of The Scientific Method Section 1.2 Controlled Experiments Experiments that involve 2 Groups: - Group that represent the standard conditions - The test Group that receives Experimental treatment Section 1.2 The Frog Egg Experiment

8 Section 1.2 Variables in Experimental Group Variable The condition in an experiment that is changed (Only One) Variable The condition in an experiment that changes because of the change in the independent variable Section 1.2 The Frog Egg Experiment Section 1.2 Scientific Tools Beakers Test tubes Hot Plates Petri dishes Graduated cylinders Dissecting Instruments Microscopes

9 Section 1.2 Theories and Laws : A hypothesis that has been supported over a long period of time : Fact of nature that is generally known to be true e.g. The Law of Gravity Ch 1: What is Biology? The Nature of Biology Section 1.3 Inside This Section... 2 Kinds of Research Science and Society Pure Science vs. Applied Science Technology

10 Section Kinds of Research dealing with data (counts/ measurements) Uses the International system of measurement (SI) meter gram liter second Celsius Section 1.3 : Uses written descriptions of what a scientist observes. E.g. Animal behavior Section 1.3 Science and Society : moral principles and values held by humans plays a vital role in determining what is ethical or not ethical when it comes to science 2 Kinds of Research

11 Section 1.3 The Realm of Science Science doesn t answer all E.g. Luck, Ugly vs. Beautiful, Good vs. evil Must be able to devise a Section 1.3 Pure Science vs. Applied Science Pure Science is mainly for the purpose of getting e.g. Studying the human eye/vision Applied Science has for daily living Designing glasses/lenses Section 1.3 Technology What is Technology The of scientific research to society s needs and

12 Sections 1.2 and 1.3 Recap Quiz: What are the steps of the Scientific Method? What are the two groups in a controlled experiment? What are the two types of Research? Which is done mainly for the purpose of gaining knowledge? Pure Science or Applied Science