#Question id: 4941
#XL - T Zoology
Which of the factors below weaken the hypothesis of abiotic synthesis of organic monomers in early Earthʹs atmosphere?
1. the relatively short time between intense meteor bombardment and appearance of the first life forms
2. the lack of experimental evidence that organic monomers can form by abiotic synthesis
3. Uncertainty about which gases comprised early Earthʹs atmosphere
#Question id: 4942
#XL - S Microbiology
Which of the following has not yet been synthesized in laboratory experiments studying the origin of life?
#Question id: 4942
#XL - T Zoology
Which of the following has not yet been synthesized in laboratory experiments studying the origin of life?
#Question id: 4943
#XL - S Microbiology
In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?
#Question id: 4943
#XL - T Zoology
In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?
#Question id: 4944
#XL - S Microbiology
What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?