Relative Sizes
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Updated
2009-02-04 22:05
Relative Sizes of Different Biological Entities
| Entity | Length/Height in meters (m) |
|---|---|
| Redwood Tree | 3x101 to 102 |
| Beech Tree | 101 to 3x101 |
| Buttercup Flower | 3x10-2 to 10-1 |
| Unicellular Algae | 3x10-4 to 10-3 |
| Animal Cells | 10-6 to 6x10-4 |
| Bacteria | 10-7 to 3x10-6 |
| Viruses | 10-8 to 10-7 |
| Method to Observe | Length/Height in meters (m) |
|---|---|
| Human Eye (no magnification) | 6x10-4 to 103 |
| Light Microscope (magnified 10-1000 times) | 6x10-7 to 6x10-4 |
| Electron Microscope (magnified 1000-1,000,000 times) | 10-10 to 6x10-7 |
Reference: p.185 of "Usborne Essential Guides: Essential Science" by P. Wingate, C. Gifford, R. Treays. EDC Publishing, Tulsa, Oklahoma. ISBN=0-7460-1011-7.
