Even though evolution has long been included in science textbooks, it is still a controversial topic.
First, evolution is a hypothesis, not an axiom.
Biologist Charles Darwin proposed the theory of evolution in 1859. At that time, Darwin wrote “The Origin of Species” to explain biodiversity on earth and the origin of life. He said that “evolution theory is only a hypothesis, it is not an axiom, it needs to be further verified by future generations.”
There are several central points in the theory of evolution:
1. Common ancestor theory: Organisms can evolve from one species to another. All organisms have a common ancestor, just as all branches of a tree grow from the same trunk. Single-celled organisms can evolve into multicellular organisms, and then into animals, plants, and fungi, and develop into various phyla, orders, families, genera, and species.
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