1. LIVING OR NON-LIVING???

2. MUSHROOM

3. CAR

4. SEA CUCUMBER

5. PARAMECIUM

6. WHIPTAIL LIZARDS

7. COIN

8. AMOEBA

9. JELLYFISH

10. HIV VIRUS

11. LUNG FISH

12. WATER FALL

13. TORNADO

14. BUTTERFLY

15. EBOLLA VIRUS

16. VENUS FLY TRAP

17. YEAST

18. PITCHER PLANT

19. VOLCANO

20. BRAIN CORAL

21. SEA FAN

22. What makes something LIVING!??
HOW DID YOU DO???
What makes something LIVING!??

23. Biology: Exploring Life
Chapter One
Biology: Exploring Life

24. All forms of life have common features
Made up of cells (Order; Complex organization)
Regulation: maintain internal environment (homeostasis)
Growth and development
Use of Energy: take in energy and use it to perform life’s functions
Response to the environment (stimuli)  Evolution: species change over time
Reproduction

25. Levels of Organization (Largest Smallest)
Biosphere Ecosystem Community Population Organism Organ Systems
Organs Tissues Cells
Cell Organelles Molecules/Compounds Atoms

26. Levels of Organization (from most inclusive to least inclusive)
Biosphere: All the environments on Earth that support life.
Ecosystem: consists of all the organisms living in a particular area, as well as all the nonliving, physical components of the environment with which organisms interact, such as air soil, water, and sunlight.
Community: the combination of all the different species (all living things) in an ecosystem.

27. Levels of Organization (cont’d)
Population: an interacting group of individuals of one species. (Example: brown pelicans)
Organism: an individual living thing.
Organ System: several organs that work together. (Example: circulatory system, digestive)
Organs: a group of tissues that work together. (Example: heart, kidney, ect.)

28. Levels of Organization (cont’d)
Tissues: a group of similar cells that work to accomplish a specific function. (Example: heart tissue, muscle tissue, skin tissue, etc.)
Cell: a unit of living matter separated from it’s environment by a boundary called a membrane.
Organelle: structure that performs a specific task inside the cell.
Molecule: a cluster of atoms held together by chemical bonds.
Atom: the smallest particle of ordinary matter.

29. Scientists use 2 main approaches to learn nature
1) Discovery Science - describing nature
Inductive reasoning: Develop general principles from a large number of observations
2) Hypothesis-Based Science - Proposing and testing hypotheses
Hypothesis: a possible explanation; a proposed answer; an educated guess; Must be testable
Deductive reasoning: “If-then” reasoning
Proper hypothesis:
If a Biology student doesn’t study for a test, then that student will fail. – NO I, me, my, we, our

30. Scientific Method Make observations
Develop questions (identify a problem)
Form a hypothesis to explain observations = Educated guess- statement, not question!
Make predictions
Test the hypothesis/predictions with an experiment
Do the experiment, collect data and analyze the data and draw conclusions/ inferences
Draw a conclusion (infer) based on observations and evidence
Does the data support your hypothesis?
If not, check your experiment or reject hypothesis – you may need a new hypothesis

31. Variable: a factor that can change
Independent variable (manipulated variable): causes change in another variable (dependent variable
Dependent variable (responding variable): changes in response to the independent variable
Constant: a condition that does not change.
Control group: a test system where all variables are identical to the experiment except the independent variable.
Experimental group: contains the independent variable

32. Qualitative vs. Quantitative Data
Quantitative – obsserved measurements (QUANTITY  numerical form)
Qualitative- physical observations (descriptive words)

33. Theory vs. Law
Theory - A well tested explanation for a wide range of observations
Supported by a large body of evidence
Future evidence can cause a theory to change or be rejected
Scientific Law – Rule of nature; describes an observed pattern in nature without attempting to explain it

34. Biology is connected to our lives in many ways
Global warming, genetically engineered crops, endangered species, etc…
Science Technology Society relationship is an important one