1. Biological Themes Evolution  species change over time  adaptations  phylogeny (evolutionary history) Reproduction and inheritance  DNA contains hereditary info.  Genes are a short segment of DNA that code for a trait  asexual v. sexual reproduction

2. Biological Themes Development  zygote becoming a mature organism Structure and function  morphology and anatomy Energy relationships  autotrophs v. heterotrophs

3. Biological Themes Ecology  interdependence of organisms Science and society  bioethics

8. Characteristics of Life All living things are composed of one or more cells  Unicellular vs. Multicellular  Unicellular – organism made up of one cell  Multicellular – organism made up for 2 or more cells

9. Euglena

11. 7 Properties of Life Cellular Organization  atoms (molecular)  Cellular (cell, tissue, organ, organ system, organism) Metabolism (Energy)  for growth, maintenance, repair

12. 7 Properties of Life Respond to the environment  stimuli and responses Growth and Development  cell division  cell enlargement Reproduction  species survival

13. 7 Properties of Life Homeostasis  Ability to maintain an internal balance Heredity and Adaptations  Passing of genetic information from parent to offspring during reproduction

15. Diversity and Unity Diversity  Variety of living organisms Unity  Features that living things have in common (characteristics of life)

16. Organizing Life Domains Bacteria (unicellular) Archaea (unicellular) Eukarya (uni and multicellular) Kingdoms Eukarya Plants, Animals, Fungi, Protists

17. Scientific Processes Observing  using senses to perceive objects and events Hypothesis formation  educated guess that can be tested with an experiment  predicting (if-then format) the results

18. Controlled Experiments Two groups  control and experimental Variables  independent (what is being manipulated; only present within the experimental group)  dependent (what is measured or observed)

19. Scientific Method Logical method to solve a problem 1. define the problem 2. collect background info 3. Form a hypothesis 4. experimental design 5. data collection 6. results, conclusions 7. report findings Data  quantitative vs. qualitative

20. Theory vs. Law Theory  explains why things happen  a hypothesis that has stood the “test of time” Law  general statement that describes a wide variety of phenomena