Evidence for evolution

Paleontology ( study of fossils )

Fossils os simpler organism → old rocks

Fossils of complex organisms → new rocks

This conforms simple organism evolved into complex organism

Comparative anatomy

Allows you to view homologous structures

Show how organisms that are different have evolved from common ancestor but have retained certain tasks

Comparative biochemistry

Study of protein and other molecules/ how they’re related between organisms

Look at highly conserved genes and how DNA is different between closely related distant organisms

Show what needs o be retained in order for a species to survive

NON CODING is very important in this field

Using amino acid sequences NOT DNA - allow to see key structures

What are some advantages?

Cost less

Maintain able show the level of change in organism

What are some disadvantages ?

Limited resources ; only can study what you find

What are the similarities and differences by the way comparative biochemistry and anatomy

Both : compare between structures in different organisms

Biochemistry : able to tell the differences by the way species more accurately