How are living things organized?

1. How are living things organized? There are various levels of organization: and get bigger. Let’s start small

2. 1) Atoms Atoms are the smallest unit of matter that have the chemical properties of a particular element. Examples: Carbon, Hydrogen, Oxygen…

3. 2) Molecules Glucose Amino Acid Water Molecules that are the small building blocks from which larger molecules are made. Examples:

4. 3) Macromolecules Cellulose Protein Large molecules consisting of many subunits. Examples:

5. 4) Organelles Mitochondria Cell Membrane Specialized structures inside of a cell. Examples:

6. 5) Cells The smallest unit of biological organization that biologists consider alive. Example:

7. 6) Tissue Muscle Skin A group of distinct and similar cells that carry out a specific set of functions. Examples:

8. 7) Organ Stomach Brain Groups of tissues organized together to carry out a particular set of functions. Examples:

9. 8) Organ System Groups of organs that function together to carry out broad sets of functions. Example:

10. 9) Organism (or individual) Individual that has its own distinct existence as a complex, reproducing unit. Examples:

11. 10) Population Herd of Zebra School of fish Group of freely interacting and breeding individuals of the same species. Examples:

12. 11) Community Marine community Populations of different species living and interacting together in a distinct area. Example:

13. 12) Ecosystem Distinguishable groups of species and the abiotic (non-living) components of the environment with which the living creatures interact. Examples:

14. 13.) Biome • Geographically defined area based on climate and environmental conditions.

15. 14.) Biosphere • I’m sure you can figure this one out!