More Related Content
Similar to science presentation_111449.pptx
Similar to science presentation_111449.pptx (17)
Recently uploaded
Recently uploaded (20)
science presentation_111449.pptx
- 1. THE EVOLUTION OF HUMANS
- 3. TABLE OF CONTENTS 01 The evolutionary journey of humans INTRODUCTION 02 Fossil discoveries such as Lucy and the Taung Child FOSSIL EVIDENCE 03 Similarities and differences between humans and primates Comperative Anatomy 04 Alikeness and unlikeness between the DNA of humans and primates Genetic Evidence Summary of the main points in the presentation Conclusion 05
- 4. Where do we came from? How did humans evolve? INTRODUCTION 01
- 6. HOMONIN Afarensis Australopithecus Homo Habilis Homo Sapiens
- 7. Human evolution was proposed by Charles Darwin. It states that humans came from modern sapiens. Through evidence, his theory is accepted in science. The following evidences are: • FOSSILS EVIDENCES • COMPERATIVE ANATOMY •GENETIC EVIDENCES •BEHAVIORAL EVIDENCE INTRODUCTION
- 8. was a well-known English geologist, scientist, and naturalist who made significant contributions to evolutionary biology. His theory that all living things share a common ancestry is now widely recognized and regarded as a fundamental idea in science. WHO IS CHARLES DARWIN? CHARLES DARWIN
- 9. HOW DID DARWIN ACTUALIZE HIS THEORY? Darwin's theories on natural selection were shaped by his journey to the Galapagos Islands in 1835. DISCOVERY EXPERIMENT Experiment in pigeons gave him evidence for evolution by natural selection, allowing him to study how far a species could change
- 11. FOSSILS Large Brain Small Teeth Bipedality 02
- 12. On November 24, 1974, fossils of one of the oldest known human ancestors, an Australopithecus afarensis specimen nicknamed “Lucy,” were discovered in Hadar, Ethiopia. THE LUCY
- 13. The fossilized anatomy of the Taung Child was the first time that scientists had discovered proof of early human upright, two- legged (bipedal) locomotion. The Taung Child's foramen magnum, or the opening through which the spinal cord communicates with the brain, served as proof. THE TAUNG CHILD
- 15. LOOK AT ME NOW LOOK AT YOU!
- 16. Comparative anatomy is the study of how various animal species' bodies differ from one another in order to comprehend the adaptive changes that have occurred throughout their evolution from similar ancestors... WHAT IS COMPERATIVE ANATOMY?
- 17. THE HOMOLOGOUS AND ANALOGOUS Are structures that are similar in related organisms because they were inherited from a common ancestor.. HOMOLOGOUS ANALOGOUS Analogous structures are similar in unrelated organisms, evolved to do the same job, not inherited from a common ancestor
- 18. HOMOLOGOUS ANALOGOUS Same origin but different functions Same function but different origin EXAMPLES OF HOMOLOGOUS AND ANALOGOUS
- 20. ● Mutations (changes)in DNA provide a source of genetic variation ● Commonalities in DNA between all organisms on Earth provide evidence for common descent. ● Slight differences is the genetic code reflect branching evolutionary relationships. HOW DOES DNA RELATE TO EVOLUTION?
- 21. Humans and chimps share a surprising 98.8 percent of their DNA. 99.8%
- 22. CHIMPANZEE GENE SIMILARITY: 99.6% PROTIEN SIMILIARITY: 100% DOG GENE SIMILARITY: 91.3% PROTIEN SIMILIARITY: 95.3% FRUIT FLY GENE SIMILARITY: 72.4% PROTIEN SIMILIARITY:76.7& COMPARISON OF HUMAN GADPH GENE & PROTIEN WITH OTHER SPECIES
- 23. 05 CONCLUSION
- 24. ● Homo sapiens are the apex beings of our world today ● But on seeing the grand scheme, we’re the youngest beings on Earth. ● Our existence of about 200k years is nothing compared to the other organisms or even our hominin ancestors who lived longer than us ● Adaptation, natural selection, and genetical evolution shaped our species to what we’re today and is still shaping us toward the future CONCLUSION
- 25. CREDITS: This presentation template was created by Slidesgo, and includes icons by Flaticon, and infographics and images by Freepik Do you have any questions? Some clarificiation? THANKS for LISTENING