Chapter one notes
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Word Parts Bio – life or living things -ology – the study of A or An – not Anti – against itis – inflammation/swelling Ist – a person who studies Genesis - creation Micro – small or tiny Uni - one Bi/Di – two Multi – many
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Transcript of Chapter one notes
Word Parts
Bio – life or living things
-ology – the study of
A or An – not
Anti – against
itis – inflammation/swelling
Ist – a person who studies
Genesis - creation
Micro – small or tinyUni - oneBi/Di – twoMulti – many
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Chapter OneChapter One
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What is Biology?What is Biology?
Biology-Biology-study of all living study of all living thingsthings
Living things are called Living things are called organismsorganisms
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What is Science?
Science is a way of knowing and it’s an ongoing ever-changing process
Have all Science Questions been Answered?
Skeptical – its good not to always have a definite explanation because the world is always changing.
Do flies come from old meat?
In 1668, Francesco Redi disproved the Spontaneous Generation hypothesis with a controlled experiment.
Spontaneous Generation – life arises from nonliving matter.
Animalcules - Microorganisms
Lazzaro Spallanzani stated, “New organisms are produced only by existing ones” using a gravy experiment
Still debated because everyone knows living things need air.
Finally, in 1864, Louis Pasteur settled the debate. The “S” shaped flask: Draw
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Scientific Method
1. Ask a Question - not opinionated
2. Form a Hypothesis – a proposed scientific explanation not “Educated Guess” *Must be Testable*
3. Conduct a Controlled Experiment – using a single manipulated variable
SM Cont.
4. Record and Analyze results – collect data (information)
5. Prepare a Conclusion – summarize data
6. Publish – let others review or reproduce your work
Biotic and Abiotic Factors
Biotic factors – interaction of living things:
1. Plants
2. Animals
3. Fungi
4. Bacteria
5. Protist
Abiotic - physical or nonliving factors that shape an ecosystem:
temperature
precipitation
humidity
wind
nutrients
soil
sunlight
Biotic vs. Abiotic Drawing
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All Living Things Share All Living Things Share Common Common
CharacteristicsCharacteristics1.1. Basic Unit is the Basic Unit is the CellCell
2.2. They They ReproduceReproduce
3.3. All Based On Universal All Based On Universal Genetic Code Genetic Code (DNA)(DNA)
4.4. Grow & DevelopGrow & Develop
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5.5. Obtain & Use Materials & Obtain & Use Materials & EnergyEnergy
6.6. RespondRespond To Their Environment To Their Environment
7.7. Maintain A Maintain A Stable Internal Stable Internal Environment - Environment - HomeostasisHomeostasis
8.8. AS A GROUPAS A GROUP, Living Things , Living Things EvolveEvolve, That Is Why They , That Is Why They Change Over TimeChange Over Time
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VersusHypothesis vs. Theory
– Proposed scientific explanation vs.
Well-tested explanation *Not A Fact*
Manipulated (Independent) vs. Responding (Dependent) Variables
– Deliberately Changed vs. Observed Change
Biotic vs. Abiotic– Living or Dead vs. Not Living (Char. Of Life)– https://www.youtube.com/watch?v=aLesk8fujH8
