Test your basic knowledge |

Origins Of Life

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What are two possible explanations for the origin of multicellularity?






2. Around when did prokaryotic organisms first appear?






3. What is a Protobiont?






4. What are the seven characteristics of life?






5. What was the 2nd of the overlapping stages in the origin of life?






6. Around when did eukaryotic organisms first appear?






7. What was the reducing atmosphere hypothesis?






8. What are two possible explanations for the origin of multicellularity?






9. What was the 1st of the overlapping stages in the origin of life?






10. What is the advantage of DNA over RNA?






11. According to the seven characteristics of life - are viruses alive?






12. What was the first macromolecule of protobionts?






13. What have experiments shown about prebiotic synthesis of polymers in aqueous solutions?






14. What is the advantage of proteins over RNA?






15. Around when did multicellular eukaryotic organisms first appear?






16. What are Liposomes?






17. What is the advantage of proteins over RNA?






18. What was the 4th of the overlapping stages in the origin of life?






19. Prokaryotic life arose during what eon?






20. About how long ago did the earth's crust cool?






21. What was the 3rd of the overlapping stages in the origin of life?






22. What is the advantage of DNA over RNA?






23. What are three advantages multicellularity provides for eukaryotes?






24. What are Coacervates?






25. About how old is the universe?






26. What was the reducing atmosphere hypothesis?






27. About how long ago did life first appear?






28. About how old is the earth?






29. What is the hypothetical RNA chemical selection scenario?






30. What are three advantages multicellularity provides for eukaryotes?






31. What was the 2nd of the overlapping stages in the origin of life?






32. What are two possible explanations for the origin of eukaryotes?






33. About how long ago did life first appear?






34. What are two possible explanations for the origin of eukaryotes?






35. What are Coacervates?






36. Name 4 characteristics of protobionts.






37. What are Liposomes?






38. What was the extraterrestrial/Panspermia hypothesis?






39. What was the deep-sea vent hypothesis?






40. Changes in living organisms are the result of what?






41. What are the seven characteristics of life?






42. What was the 4th of the overlapping stages in the origin of life?






43. What have experiments shown about prebiotic synthesis of polymers in aqueous solutions?






44. Around when did multicellular eukaryotic organisms first appear?






45. According to the seven characteristics of life - are viruses alive?






46. About how old is the earth?






47. About how old is the solar system?






48. Around when did prokaryotic organisms first appear?






49. Prokaryotic life arose during what eon?






50. What are fossils?