Evolution Flashcards
Urey-Miller Experiment
simulated early Earth, created amino acids that were building blocks for life
Fossils
remains of organism preserved in petrified form
Archaeopteryx
had scales and feathers, possible link between birds and dinosaurs
Vestigial structure
structures in an organism that no longer have purpose, no longer need it
Embryology
animal embryos share traits, suggests a common ancestor
Genetics
ALL living things have DNA, amino acids, cells, etc
Homologous structures
body parts/bones are similar because they have a common ancestor
Analogous structures
body parts that look/work similar because of a similar environment
Divergent evolution
species are similar because they come from a common ancestor
have homologous structures
Convergent evolution
live in a similar habitat so they evolve similarly, but are not related
have analogous structures
Cladogram
branching diagram showing the relationship between species
Evolution
change in inherited traits over time
Charles Darwin
Father of Evolution, all species descended over time from a common ancestor
Natural Selection
only the BEST organisms survive to have babies + pass on their traits
Adaptation
changes that makes an organism better able to live in its environment
Artificial Selection
humans breed animals & plants that have the best traits
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Natural Selection