Evidence of Evolution
-
Upload
noelani-price -
Category
Documents
-
view
10 -
download
0
description
Transcript of Evidence of Evolution
![Page 1: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/1.jpg)
Evidence of EvolutionEvidence of Evolution
1. Fossils :• Preserved remains of a REAL organisms.• A fossil is not a the actual bone, the bones get
buried and mineral deposits take their place over time.
• Actual record of past life forms• Able to “date” and link lineages
• Older fossils are in deeper layers of rock
• Carbon dating used to estimate age
![Page 2: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/2.jpg)
![Page 3: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/3.jpg)
![Page 4: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/4.jpg)
Evidence of EvolutionEvidence of Evolution
2. Molecular Similarities• All organisms’ DNA is made up of the same four
nucleotides (A-T, G-C)
• All organisms are structurally made up of the four organic compounds: nucleic acids, carbohydrates, proteins, and lipids
• Species that share a more recent ancestor have fewer amino acid differences in their proteins
• Shows same relationships from fossils
![Page 5: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/5.jpg)
Molecular Similarities: HemoglobinMolecular Similarities: Hemoglobin
Species # Amino acids different than humans
Gorilla 1
Rhesus monkey 8
Mouse 27
Chicken 45
Frog 67
Lamprey 125
![Page 6: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/6.jpg)
Evidence of EvolutionEvidence of Evolution
3. Homologous Structures / Similar anatomy:• Similar body structures/bones with different functions
![Page 7: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/7.jpg)
Evidence of EvolutionEvidence of Evolution
4. Similar vertebrate embryos:• Early in development, vertebrate embryos have
similar characteristics
• In the individuals above, there is a gill pouch present in each vertebrate. However, that does not mean that humans have gills because we don't. It is really thyroid glands, not gills that is in humans. Comparative embryology shows species with similar ancestors.
![Page 8: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/8.jpg)
Which one is human?Which one is human?
1 2 3 4 5 6 7 8
![Page 9: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/9.jpg)
Which one is human?Which one is human?
1 2 3 4 5 6 7 8
![Page 10: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/10.jpg)
Which one is human?Which one is human?
1 2 3 4 5 6 7 8
![Page 11: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/11.jpg)
Did you guess?Did you guess?
![Page 12: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/12.jpg)
Evidence of EvolutionEvidence of Evolution
![Page 13: Evidence of Evolution](https://reader030.fdocuments.us/reader030/viewer/2022032806/56813460550346895d9b463c/html5/thumbnails/13.jpg)
Practice Questions in Review BookPractice Questions in Review Book
Page 171 & 172 Questions 13, 14, 16 and 26
While answering multiple choice please underline key words, write what you know and cross off answers you know are wrong.
Page 173 Question 41
Before answering question 41 read the section in the book entitled Natural Selection on page168. Write the answer on the sheet provided. Use full sentences after each bullet!