ATOMS
• Smallest part of matter
• NON-living
Macromolecule
• Very large molecules
• Proteins, fats, carbohydrates, nucleic acids
• NON-living
Cell
• Made of organelles
• Basic unit of structure & function
• LIVING
Tissue
• The same kind cell working together
• Living
Organs
• Tissues that work together
• Living
Systems
• Organs that work together
• Living
Organism
• Entire living things (organisms)
• Usually made of systems
• May be a single cell
• Living
Population
• Same type of organism living together
Community
• Several populations living together
• Population interact
Ecosystem• A biotic (living) community plus the abiotic (nonliving) features
Biome
• Similar ecosystems on earth together
Biosphere
• Whole living layer around the globe
• Includes abiotic features
http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/envisys.html