Respuesta :
The change in life forms in the fossil record from less complex organisms to more complex organisms over time is best explained by evolution.
What is an Evolution?
- In Biology, evolution refers to the various variations of living forms on Earth, as well as their genesis in other prior types, and the noticeable changes that may be noticed as a result of multiple adjustments in subsequent generations.
- The theory of evolution is the major keystone in the recent biological advancements.
- Humans and other mammals descend from shrew like creatures that lived over 150 million years ago; mammals, birds, reptiles, amphibians, and fishes share as ancestors aquatic worms that lived 600 million years ago; and every one plants and animals derive from bacteria-like microorganisms that originated quite 3 billion years ago.
- Biological evolution may be a process of descent with modification.
- Variations in the organisms arises due to the divergence of the traits throughout the time.
Hence, due to the evolution we see a the fossil records from less complex organisms to more complex organisms over time.
Learn more about the Evolution here: https://brainly.com/question/23597985
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