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Biology Class Notes

Biology is the study of life and living organisms, encompassing various branches such as botany, zoology, microbiology, and genetics. Key characteristics of living things include cellular composition, growth, response to the environment, reproduction, homeostasis, and energy use. The document emphasizes the importance of biology in understanding the living world and its applications in health, environment, and biotechnology.

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10 views2 pages

Biology Class Notes

Biology is the study of life and living organisms, encompassing various branches such as botany, zoology, microbiology, and genetics. Key characteristics of living things include cellular composition, growth, response to the environment, reproduction, homeostasis, and energy use. The document emphasizes the importance of biology in understanding the living world and its applications in health, environment, and biotechnology.

Uploaded by

tahairfan01235
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Title: Biology Class Notes

Subtitle: Introduction to Biology

Presented by: [Your Name]

What is Biology?

- Study of life and living organisms

- Includes structure, function, growth, evolution, distribution, and taxonomy

Branches of Biology

- Botany: Study of plants

- Zoology: Study of animals

- Microbiology: Study of microorganisms

- Genetics: Study of heredity

Characteristics of Living Things

- Made of cells

- Grow and develop

- Respond to environment

- Reproduce

- Maintain homeostasis

- Use energy

Levels of Organization

- Cell -> Tissue -> Organ -> Organ System -> Organism

Cell Theory

- All living things are made of cells


- Cells are the basic units of life

- All cells come from pre-existing cells

Types of Cells

- Prokaryotic (no nucleus) - e.g., Bacteria

- Eukaryotic (nucleus) - e.g., Plants, Animals

Conclusion

- Biology helps us understand the living world

- Foundation for health, environment, and biotechnology

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