Evolution 3 Flashcards
What do fossils provide evidence of?
Evolutionary change over time
What is a Homologous structure ?
Similar physical features in organisms that share a common ancestor, but the features serve completely different functions. (the hands of a human compared to that of a dolphin for example)
What is a Vestigial structure
Remnants of structures inherited from ancestors
What is convergent evolution?
Two groups evolved structures with the same basic function but with very different anatomy.
Embryological similarity?
All vertebrate embryos resemble one another in their early development
What do embryo tail and gills in genes suggest?
Shared ancestral vertebrate
What is cytochrome C
a Protein used in the electron transport chain during cellular respiration in eukaryotic cells
What is Genetic Variation
Differences in DNA among individuals or the differences between populations among the same species.
An ____ is any body structure, physiological process, or behavior that helps an organism survive and reproduce in a particular environment.
Adaptation
Natural Selection occurs when?
When organisms with the most successful adaptations leave the most offspring and the population changes over time.
