Answer:
Complex organisms evolved from more simple organisms
Step-by-step explanation:
Fossil records support the fact that complex organisms evolved from more simple organisms.
Fossils are remains of organisms that have been naturally preserved in rock forms.
The study of fossilized remains of organisms has enabled scientists to establish the fact that earlier organisms are simple types and more complex organisms arose from them through a gradual process of change, otherwise known as evolution. Carbon dating of fossils enables scientists to establish the year the organism existed.