The science of life
What does the word "biology" mean?
- Greek ”bios” = life
- Greek ”logos” = text, knowledge of
- Bio-logy = science of life
What is life?
Something that …
- … has a metabolism.
- … can grow and reproduce.
- … has the ability to move.
- … can evolve (develop) over time.
Cells – the smallest living units:
- Cellular membrane to keep everything in place.
- DNA and RNA (genetic material).
- Enzymes (a kind of proteins) coordinate the metabolism.