90 likes | 197 Views
Do Now. Using the theory of natural selection write a fictitious scenario of life for a population of birds on an island. Write about how the birds changed in response to external forces. POP QUIZ. Please Define the following: Natural Selection Survival of the Fittest Adaptation
E N D
Do Now Using the theory of natural selection write a fictitious scenario of life for a population of birds on an island. Write about how the birds changed in response to external forces.
POP QUIZ Please Define the following: Natural Selection Survival of the Fittest Adaptation Evolution Artificial Selection
Evolution by Natural Selection • Descent with Modification • Over long period’s natural selection produces organisms that: • Have different structures • Establish different niches • Occupy different habitats
The fossil record Geographic distribution of living species Homologous body structures Similaritiesin early development Physical remains of organisms Common ancestral species Similar genes Similar genes Concept Map Section 15-3 Evidence of Evolution includes which is composed of which indicates which implies which implies
Evidence of Evolution • Fossil Record • Recorded history of life • Geographic Distribution of Living Species
Figure 15–14 Geographic Distribution of Living Species Section 15-3 Beaver Beaver Muskrat Beaver andMuskrat Coypu Capybara Coypu andCapybara NORTH AMERICA Muskrat Capybara SOUTH AMERICA Coypu
Figure 15–15 Homologous Body Structures Section 15-3 Turtle Alligator Bird Mammal Ancient lobe-finned fish
The fossil record Geographic distribution of living species Homologous body structures Similaritiesin early development Physical remains of organisms Common ancestral species Similar genes Similar genes Concept Map Section 15-3 Evidence of Evolution includes which is composed of which indicates which implies which implies