1 / 11

1.3 Ten themes unify the study of life

1.3 Ten themes unify the study of life. Mrs. Kerstetter Biology. Biological Systems. System = a complex organization formed from a combination of smaller parts Has properties based on the arrangement and interaction of its parts Examples: Your body! Ecosystem. Cellular Basis of Life.

makenna-goulding
Download Presentation

1.3 Ten themes unify the study of life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1.3 Ten themes unify the study of life Mrs. Kerstetter Biology

  2. Biological Systems • System= a complex organization formed from a combination of smaller parts • Has properties based on the arrangement and interaction of its parts • Examples: • Your body! • Ecosystem

  3. Cellular Basis of Life • All organisms are made of cells • Most multicellular organisms have cells that are specialized for different functions • What does specialized mean? • Most multicellular organisms have higher levels of organization • Interaction of cells determines development and survival Celltissueorgansystemorganism

  4. Form and Function • How something works is related to its structure • AKA “form fits function” • What are some examples in nature where “form fits function?”

  5. Reproduction and Inheritance • “Like begets like” • Organisms reproduce their own kind • Genes (units of genetic information) are responsible for family inheritance • Genes are made of DNA • Each cell contains copy of ALL DNA in your genome • Inherited info in the form of DNA enables organisms to reproduce their own kind

  6. Interaction with the Environment • Each organisms interacts continuously with its environment • Imp in an ecosystem (of which we are a part!) • Transfer of chemicals b/w organisms and the environments • React to environmental stimuli

  7. Energy and Life • Energy is needed in chemical form • Carbohydrates, lipids, etc. • Ecosystem

  8. Regulation • Homeostasis= regulation of internal conditions • Examples?

  9. Adaptation and Evolution • Adaptation= an inherited trait that helps an organism’s ability to survive and reproduce • Population= localized group of organisms of the same species • Natural selection= individuals with beneficial variations may live longer and produce more offspring than those that don’t • Evolution= generation-to-generation change in the proportion of different inherited genes in a population

  10. Biology and Society • DNA • Medicine • Agriculture • Pharmaceuticals • Environmental issues • Genetics

  11. Scientific Inquiry =asking questions about nature =using observations or experiments to to find possible answers

More Related