A Japanese girl who lost her hair from radiation sickness from the atomic bomb Americans dropped on Hiroshima Some atoms are naturally radioactive, especially atoms of uranium and plutonium. These atoms have so many [...]
An onion skin cell (seen through a microscope) You can see the nucleus inside each cell The earliest cells, and all prokaryote cells, don't have a nucleus. Inside these simple [...]
A eukaryote cell (seen through a microscope) full of chloroplasts How do eukaryotes divide? Eukaryote cells generally reproduce themselves using a method called mitosis. When a eukaryote cell senses that there [...]
Human cheek cells (seen through a microscope at 400X) The best way to understand cells better is to look at some through a microscope. If you don't have a microscope [...]
