Final answer:
The four theories of the origin of life are: Abiogenesis, Panspermia, Prebiotic evolution, and Directed panspermia.
Step-by-step explanation:
The four theories of the origin of life are: 1) Abiogenesis, which proposes that life originated from non-living matter through biochemical reactions; 2) Panspermia, which suggests that life originated from microorganisms transported to Earth from outer space; 3) Prebiotic evolution, which proposes that life emerged from complex chemical reactions in a prebiotic soup on Earth; and 4) Directed panspermia, which proposes that life was intentionally brought to Earth by an extraterrestrial civilization.
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