life
Tags
bio/astro
cegep/3
Word count
92 words
Reading time
1 minute
Characteristics:
- Organization
- Information
- Erwin Schrodinger: only aperiodic solids hold information
- Metabolism
- Energy transformation
- Reaction
- Evolution
- Change in the information
Viruses don't metabolize so are not considered as alive.
Viking mission
Experiment #1: presence of metabolism on Mars
Experiment #2: absence of organic molecules on Mars
=> d
Essential elements
- Carbon
- Hydrogen
- Nitrogen
- Oxygen
- Phosphorus
- Silicon
Life on earth is not silicon-based because it readily reacts with oxygen to form silicate.
Ajitani Hifumi