1. | They could separate combinations of molecules from the surroundings |
2. | They were able to reproduce |
3. | They were partially isolated from the surroundings |
4. | They could maintain an internal environment |
First life on earth was:
1. Cyanobacteria
2. Chemohetrotrophs
3. Autotrophs
4. Photoautotrophs
After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
The concept of chemical evolution is based on:
1. | crystallization of chemicals |
2. | interaction of water, air, and clay under intense heat |
3. | effect of solar radiation on chemicals |
4. | possible origin of life by a combination of chemicals under suitable environmental conditions |