Question

Biological evolution differs from chemical evolution in that it would have been possible only after ______.

Options

• true cells

• nucleic acids

• enzymes

• a metabolic pathway

Answer 1

Biological evolution differs from chemical evolution in that it would have been possible only after true cells.

Explanation:

Chemical evolution refers to the gradual formation of increasingly complex organic molecules from simpler inorganic substances, which could occur without actual living cells. Biological evolution, however, requires the presence of true cells capable of reproduction, metabolism, and genetic information transfer. Only after true cells had formed could biological evolution, involving heredity, variation, and natural selection, begin.