Which step in the evolution of life is the most complex and probably occurred last?
A) formation of DNA
B) formation of protein-RNA systems
C) formation of membrane-bound proto-cells
D) spontaneous formation of organic compounds under abiotic conditions
E) formation of ATP

Question

Which step in the evolution of life is the most complex and probably occurred last?​
A) ​formation of DNA
B) ​formation of protein-RNA systems
C) ​formation of membrane-bound proto-cells
D) ​spontaneous formation of organic compounds under abiotic conditions
E) ​formation of ATP

Quizplus · Accepted Answer

Membrane-bound proto-cells are considered the most complex step in the evolution of life, as they require the formation of a lipid bilayer and the ability to separate the internal environment from the external environment. This step likely occurred towards the end of the evolution of life on Earth. The other options describe earlier steps in the evolution of life.

Which Step in the Evolution of Life Is the Most