BSC1005 - Unit 1 Guaranteed Success
Key Biological Concepts
1. Homeostasis: Regulation of an organism's internal environment to maintain conditions suitable for
survival.
2. Properties of Life:
- 1. Order
- 2. Sensitivity/Response to Stimuli
- 3. Reproduction
- 4. Adaptation
- 5. Growth + Development
- 6. Regulation
- 7. Homeostasis
- 8. Energy Processing
3. Taxonomic Hierarchy (Domains):
- Domain
- Kingdom
- Phylum
- Class
- Order
- Genus
- Species
4. Biology: The science that studies life.
5. Atom: The smallest and most fundamental unit of matter; consists of a nucleus surrounded by
electrons.
, 6. Molecule: A chemical structure consisting of at least two or more atoms held together by chemical
bonds.
7. Macromolecules: Large molecules typically formed by combining smaller units called monomers.
8. Organelles: Small structures that exist within cells, performing specialized functions.
9. Cell: The smallest fundamental unit in living organisms.
10. Prokaryotes: Single-celled organisms that lack organelles, are not surrounded by a nuclear
membrane, and do not have nuclei.
11. Eukaryotes: Organisms that have membrane-bound organelles and nuclei.
12. Tissue: A group of similar cells carrying out the same function.
13. Organs: Collections of different tissues working together to perform a specific function.
14. Organ System: A higher level of organization that consists of functionally related organs.
15. Organism: Individually living entities.
16. Population: Individuals of a species living within a certain area.
17. Community: A set of populations inhabiting an area.
18. Ecosystem: All living things in an area, together with their physical environment.
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