The second largest crater in the world was formed by the impact of a comet according to a 2014 study by researchers in Canada and Ireland. Colliding with Earth almost 1.85 billion years ago, the estimated diameter of the crater is 81 miles (130 km).
How big is a bacteria compared to a human cell? The size of a typical bacterial cell is 0.5-5.0 micrometers, a average human cell is 10 micrometers.8 people found this useful.Edit.he consensus among biologists is that only 5 to 10% of the trillions of cells in our bodies are human. The rest are alien cells: yeast, fungi, bacteria, viruses.
No, cells arent all the same size. The size of a cell depends on the organism it belongs to and its function, for example a bacterial cell would be a maximum of around 10micro â¦ ns whereas an average human cell is between 10 and 100 microns, with size varying as I said dependant on function.5 people found this useful.he size of a cell depends on the organism it belongs to and its function, for example a bacterial cell would be a maximum of around 10micro â¦ ns whereas an average human cell is between 10 and 100 microns, with size varying as I said dependant on function. 5 people found this useful.