生物学研究内容英文版课件

1、Biology: What Is the Study of Life?Biology: What Is the Study of Why Study Biology?Two important reasons for studying Biology:Biology is relevant to our everyday experienceMedical advancesAddressing needs of growing human populationChallenges of decreasing rate of biodiversityBiotechnology advancesW

2、hy Study Biology?Two importanWhy Study Biology?Biology can be controversialExamples: Dealing with endangered species?Use of human fetal tissue in biomedical research?Safety of irradiated foods?Figure 1-1cWhy Study Biology?Biology can What is Biology?It is the study of life.Branch of scienceA way of

3、understanding nature.A human endeavorAn attempt to understand, explain, integrate and describe the world of living things.What is Biology?It is the studWhat is Life?Living organisms:Highly organized and complex.Are composed of one or more cells.Contain a blueprint of their characteristics. Acquire a

4、nd use energy.Carry out and control numerous reactions.What is Life?Living organisms:What is Life?Living organisms:Grow.Maintain constant internal environment.Produce offspring.Respond to environmental changes.May evolve.Insert F01_03bWhat is Life?Living organisms:Biology is a Branch of ScienceBoth

5、an activity and body of knowledge.A way of understanding the natural world.Scientists make predictions and test those predictions.Biology is a Branch of ScienceMajor Themes in BiologyEvolution by Natural SelectionInheritanceCellsBiological ClassificationBioenergeticsHomeostasisEcosystemsMajor Themes

6、 in BiologyEvolutiHow is Biology studied?Insert F01-06How is Biology studied?Insert Scientific MethodBegins with observations about our surroundings.Next, ask questions about the phenomena we are observing.Scientific MethodBegins with oScientific MethodFollowed by generating a hypothesis.Tentative e

7、xplanation to the question.Scientific MethodFollowed by gScientific MethodTestingScientists perform tests to determine the accuracy of their hypothesis.Scientific MethodTestingScientific MethodExplanationIt is a hypothesis that has passed the widest and most comprehensive series of tests.Still subject to r