Characteristics of Living Things

Subject Outline

AThe concept of life on Earth
- 1Properties of life
  - aOrder and form
  - bMetabolism: catabolism and anabolism
  - cSensory reception
  - dReproduction, growth, and development
  - eInteraction with the environment
- 2Levels of biotic organization
  - aMolecular: polymers, carbohydrates, lipids, proteins, and nucleic acids
  - bCellular: procaryotic cells and eucaryotic cells
  - cOrgan: tissues, tissue systems, and the whole organism
  - dPopulation: species and communities
BLife beyond the Earth
- 1The concept of extraterrestrial life and its chemistry
- 2The significance of the search for life beyond Earth