- 3rd cell theory: what does Rudolph Virchow propose in 1855?
- animals of cells: what does Theodore Schwann do in 1839?
- Anton van Leeuwenhoek: little pond creatures
- cork cells: what does Robert Hooke do in 1665?
- Janet plowe: plasma membrane
- Lynn Margulis: mitochondria bacteria
- Matthias Schleiden: plant cells
- mitochondria: what does Lynn Margulis propose in 1970?
- plants of cells: what does Matthias Schleiden do in 1838?
- plasma membrane: what does Janet introduce in 1931?
- pond water: what does Anton van Leeuwenhoek do in 1674?
- Robert Hooke: cork
- Rudolph Virchow: new from existing cells
- Theodore schwann: animal cells