Evolution Flashcards
Evolution evidence
Ancient organism remains Fossil layers Similarities among living organisms today DNA similarities Breeding
What is the theory of natural selection
Random mutations in a species gave certain animals the competitive edge making it more likely that it will survive, breed and pass on this gene. Other animals eventually died off
What is Lamarcks theory of inheritance of acquired characteristics
Example is a giraffe stretches its neck and passes on this long neck to its offspring
Why was darwins theory only gradually accepted
Conflicted with religious views
Did not have enough evidence
Definition of classification
The process of separating something into different groups based on common traits that the members of that group share
What are some classification criteria
Symmetry Segmentation Appendages Skeleton Lays eggs Feathers Larvae Wings Cold/warm blooded
How do evolutionary trees show relationships between organisms
Cross roads show common ancestors
Definition of evolution
The gradual development of organisms over a long period of time from simple organisms
