Across
- 2. possibly the first enzymes
- 3. remnant of an animal or a plant of a past geologic age preserved in the earths crust
- 5. the idea that life originated from inanimate being
- 8. process through which populations of living organisms adapt and change
- 9. cooked fish was placed in three jars of which one was opened the second was closed with parchment and the third one was covered with fine muslin to see which jar would be full of maggots and flies
Down
- 1. on which planet was the phospine gas found that may indicate the signs of life?
- 4. it appeared 2,3 billion years ago
- 6. the change of characteristics of a species over several generations
- 7. first organisms