What does the theory of organic evolution propose?

The theory of organic evolution posits that life forms have undergone significant changes over time, evolving from simpler organisms to more complex ones. This concept emphasizes that rather than existing in a static state, species continually adapt and change through processes such as natural selection, mutation, and genetic drift. This gradual change over long periods aligns with observations in the fossil record and modern biology, which provide evidence of transitional forms and the branching nature of species.

The idea that plants and animals have existed in their current form since creation contradicts the foundational premise of evolution, which observes change and diversity over time. The notion that all species are unrelated and evolved independently overlooks the evidence of common ancestry found in genetic similarities among species. Lastly, proposing that evolution occurs in rapid bursts within short time frames doesn’t capture the broader consensus of gradual changes over extensive periods that have shaped life on Earth. Thus, the statement about evolving from simple to complex organisms best encapsulates the core of the theory of organic evolution.