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Biology 4. What is Life? Properties of Life Reproduction.

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Presentation on theme: "Biology 4. What is Life? Properties of Life Reproduction."— Presentation transcript:

1 Biology 4

2 What is Life?

3 Properties of Life

4 Reproduction

5 Order

6 Growth and Development

7 Use Energy

8 Response to the Environment

9 Homeostasis

10 Evolutionary Adaptations

11 Smallest Unit of Life Cell or Virus????

12 Smallest Unit of Life – The Cell Prokaryotic Cells –DNA and Ribosomes –No nucleus –No membrane bound Organelles Eukaryotic Cells –DNA and Ribosomes –Nucleus –Membrane bound Organelles

13 Emergent Properties Novel properties emerge that are not present at the level below Reductionism

14 Unity and Diversity

15 Biology Hierarchy

16 Subatomic Particles Atoms Molecules Organelles Cells Tissues Organs Organ Systems Organisms Populations Communities Ecosystems Biomes Biosphere

17 Biology Hierarchy K P C O F G S

18 Biology Hierarchy Kingdom Phylum Class Order Family Genus Species

19 Biology Hierarchy Kingdom - Animalia Phylum Class Order Family Genus Species

20 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class Order Family Genus Species

21 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order Family Genus Species

22 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order - Falconiformes Family Genus Species

23 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order - Falconiformes Family - Accipitridae Genus Species

24 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order - Falconiformes Family - Accipitridae Genus - Haliaeetus Species

25 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order - Falconiformes Family - Accipitridae Genus - Haliaeetus Species - leucocephalus

26 Biology Hierarchy Kingdom - Animalia Phylum - Chordata Class - Aves Order - Falconiformes Family - Accipitridae Genus - Haliaeetus Species - leucocephalus

27 Biology Hierarchy Domain Kingdom Phylum Class Order Family Genus Species

28 Domains

29 Domain: Bacteria Prokaryotic Cell Walls - Peptidoglycan Most Bacteria

30 Domain: Archaea Prokaryotic Extreme Conditions Make DNA and Proteins like eukaryotic cells

31 Domain: Eukarya Eukaryotic Cells

32 Kingdom: Protista Usually Unicellular Some have Cell Walls of Cellulose

33 Kingdom: Fungi Multicellular Cell Walls of Chitin Decomposers

34 Kingdom: Plantae Multicellular Cell Walls of Cellulose Autotrophs

35 Kingdom: Animalia Multicellular No Cell Walls Heterotrophs

36 What is Science? Science = To Know Science is a process –Scientific Method

37 What is Science? Science = To Know Science is a process –Scientific Method

38 Scientific Method Observation –Senses / Lit search Hypothesis –Testable and Repeatable –Null hypothesis – No significant difference –Alternative hypothesis – significant difference Experiment –Sample Size = 30 –Control, change one variable –Threshold criterion (0.05) Analysis –Quantitative (Statistical testing) Conclusion

39 Scientific Method Observation –Senses / Lit search Hypothesis –Testable and Repeatable –Null hypothesis – No significant difference –Alternative hypothesis – significant difference Experiment –Sample Size = 30 –Control, change one variable –Threshold criterion (0.05) Analysis –Quantitative (Statistical testing) Conclusion

40 Are they the same? Hypothesis Theory Law

41 Probability in Science Science eliminates possibilities

42

43 Probability in Science Do the colors make them harder to see? Is there a benefit looking like a poisonous species?

44 Probability in Science Science eliminates possibilities

45 Probability in Science Science eliminates possibilities

46 Evolution

47 Evolution Change over time

48 Why isn’t “Intelligent Design” taught in most science Classes?


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