Multiple Choice
Molecules of ____________ are thought to have combined on the primitive Earth to form amino acids.
A) methane,oxygen,and water
B) water,ammonia,and methane
C) water,ammonia,and carbon dioxide
D) carbon dioxide,water,and methane
Correct Answer:

Verified
Correct Answer:
Verified
Q21: Where would you find layered microbial communities
Q22: The chemical element that is the fundamental
Q23: The radiation of life at the beginning
Q24: What type of microbes would you expect
Q25: _ is the process whereby animals change
Q27: Miller,in his experiments to explore the origin
Q28: _ is another name for single-celled organisms.<br>A)Autotrophs<br>B)Microbes<br>C)Heterotrophs<br>D)Slime
Q29: A mineral that commonly encrusts microbes living
Q30: Stanley Miller's experiments to explore life-building chemical
Q31: Photosynthesis arose in a group of bacteria