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Biology as a Science
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Biology
Biology is the study of life and living things
A Biologist is anyone who uses the scientific method to study living things
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Branches of Biology
There are many different types of biology and biologists
Each type is called a branch of biology
We will talk about 5 branches of biology
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Branches of Biology
The 5 branches of biology are
1. Molecular level
2. Cellular level
3. Multicellular level
4. Population level
5. Global Level
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Molecular Level
Biology starts at the molecular level
Molecular biology refers to the biological chemicals
Examples :
Molecular Biologists might look at how DNA works and the chemicals that make up DNA
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Molecular Biology
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Cellular level
Cellular level biology is where we first see signs of life
Cellular biologists look at biology one cell at a time
Examples:
A cellular biologist might look at how cancer attacks living cells
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Cellular Biology
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Multicellular level
Multicellular biology is the biology of complex organisms
A complex organism is anything that is made up of multiple cells doing many different jobs
Examples:
Medical doctors are one type of multicellular biologists because they look at how the body and its parts work together.
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Multicellular Biology
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Population Level
Some biologists look at populations of living organisms and how they interact with the environment
Example:
A population biologist might look at how birds migrate during the winter.
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Population Biology
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Global Level
Global biology is the study of everything on the planet and how it interacts with all the organisms living on Earth
Example:
A global biologist might want to look at how human beings could help the planet by finding out what can be recycled
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Global Biology