Bio - 5 - Evolution

5 - Evolution

Evolution evidences

Basics

Evolution: change over time

Biological evolution: cumulative changes in heritbale characteristics (allele frequency within a population's gene pool) over successive generations

Proofs for evolution

Fossil record: totality of fossils, both discovered and undiscovered

Fossil : preserved remains and traces of any organism of a remote past

Remains: direct evidence for evolution - bones, teeth, shells, etc

Traces: indirect evidence for evolution - foot prints, burrows, faeces, etc

Fossil record shows chnages over time have occured in fetures of living organisms (evolution