#Question id: 4942
#Unit 11. Evolution and Behavior
Which of the following has not yet been synthesized in laboratory experiments studying the origin of life?
#Question id: 4943
#Unit 11. Evolution and Behavior
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
#Unit 11. Evolution and Behavior
What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?
#Question id: 4945
#Unit 11. Evolution and Behavior
Which is a defining characteristic that all protobionts had in common?
#Question id: 4946
#Unit 11. Evolution and Behavior
Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not
#Question id: 4947
#Unit 11. Evolution and Behavior
The first genes on Earth were probably