Evolution #1
When two unrelated organisms evolve similar characteristics because they evolved in the same environment
What is Convergent Evolution?
Proposed the theory of evolution by natural selection
Who is Charles Darwin
Nature selects a trait that increases an individual’s chance of mating
What is Sexual Selection
Preserved remains of ancient organisms
What are Fossils
An example is the breeding of dogs to have traits the makes the dog have desired traits.
What is Artificial Selection?
The study of where species live
What is Biogeography
Structures that are similar in anatomy but not in functionality
What is a Homologous Structure
When one species evolves into many
What is divergent evolution
An example would be that animals separated by mountains or water (lakes, rivers, oceans) will evolve differently.
What is Geologic isolation?
These events may cause mass distinctions
What is climate, disease, insufficient food supply?
New organisms come into or out of a population
What is Gene Flow
This is a diagram used to show evolutionary relations between groups of organisms.
What is cladogram?
The differences in the physical traits of organisms
What is variation
This is another term for Natural selection
What is The survival of the fittest
Diagram showing the evolutionary relationships between organisms.
What is a cladogram?
The beaks of the birds developed in different ways according to how they eat and live.
What did Darwin learn about his finches on Galápagos Islands?
The ultimate source of genetic variation
What is genetic mutation
Why is it impossible for a polar bear to hunt for penguins?
Geologic isolation polar bears are arctic animals and penguins are antarctic animals.