INTRODUCTION
S. No. |
Character |
Variation |
Example |
1 |
Size |
Few micrometers to 100 meters |
Microbes: 1 micron Whale: 30 meters Red wood trees of California: 100 meters |
2 |
Age |
Few minutes to 1000 years |
Bacteria: 20 minutes approx. Mosquitoes: few days Dogs: 12 years Tortoise: 200 years Pine trees-1000 years |
3 |
Shape |
Irregular to well defined |
Amoeba: irregular Paramecium: slipper shaped |
4 |
Food habit |
Autotrophic, heterotrophic Saprophytic, parasitic, holozoic etc. |
Plants: Autotrophic Animals: Heterotrophic Human beings: holozoic Parasitic: tapeworm, leech Saprophytic: fungus etc |
5 |
Color |
Transparent to bright colors |
Worms: transparent Butterflies: different colors Flowers: different colors etc |