AP BIOLOGY

Detailed explanation-1: -Aristotle held that insects developed from the morning dew and rotting manure, tapeworms from excreta of animals, and crabs and salamanders from wet earth and slime.

Detailed explanation-2: -The theory of abiogenesis was proposed by Thomas Henry Huxley. The theory of abiogenesis states that the evolution of living forms from non-living matter is spontaneous. Example: Meat left open generates flies and maggots. This shows spontaneous generation.

Detailed explanation-3: -Abiogenesis, the theory that life evolved from nonliving chemical systems, replaced spontaneous generation as the leading theory for the origin of life. Haldane and Oparin theorized that a “soup” of organic molecules on ancient Earth was the source of life’s building blocks.

Detailed explanation-4: -The theory of abiogenesis explains that life originated from inorganic matter. This theory was proposed by Oparin, Miller, and Urey. It is based on the observations and the hypothesis. The term biogenesis was coined by Henry Charlton Bastian to mean the generation of a life form from non-living materials.

Detailed explanation-5: -The theory of spontaneous generation states that life arose from nonliving matter. It was a long-held belief dating back to Aristotle and the ancient Greeks.