Evidences of Evolution
Cards (14)
- Universality of genetic code – supports evolution
- 4 Types of Evidence
- Fossils
- Comparative Anatomy
- Embryology
- Biochemistry
- Most fossils were commonly found in sedimentary rocks.
- Fossils - Traces of organisms that lived in the past were preserved by natural processes or catastrophic events.
- The Three Ways to Determine the Age of Fossils
- Relative Dating
- Radiometric Dating
- Carbon Dating
- Relative DatingIt involves examining layers to determine age. Newer rocks are typically on top, while older rocks are at the bottom. Fossils in lower layers are older than those in upper layers.
- Carbon DatingIs a method to find out how old organic materials are. Art collectors use it to confirm the age of artworks.
- Homologous StructuresSimilar physical features but different functions.
- Analogous StructuresSimilar functions but diferent physical features.
- Vestigial StructuresStructures that have no apparent function and appear to be residual parts from past ancestors.
- By studying the amino acids in specific proteins like cytochrome C and hemoglobin, scientists can figure out how closely related these organisms are.
- DNA was found as genetic material in the early 20th century.
- Embryonic development includes stages such as blastula, gastrula, and organogenesis.
- Patterns of embryological development can indicate a common ancestry.