Evolution Flashcards
What is Biological Evolution?
> Any Genetic change in a population that is inherited over several generations.
What is Micro-evolution?
> Large changes in many species that take place over a long period of time.
What is Micro-evolution?
> Small changes that take place within a species to adapt to survive.
What is a Fossil?
> The imprint, traces or preserved remains of an organism that once lived. A fossil may be plant, animal body parts or impressions in rocks.
What is a Transitional Fossil?
> Fossil having characteristics of species that arose before it as well as species that arose after it.
What is Biodiversity?
> The Variety of different plant and animal species found on earth where diversity is the result of change over time.
What is Natural Selection?
> The process of change over time, that takes place in species.
What is a Species?
> A group of organisms that are similar in appearance, share the same DNA sequences, perform the same mating rituals and interbreed to produce viable offspring.
What is a Population?
> A group of organisms of different ages, that belong to the same species, live in the same area and interbreed.
What is Continuous Variation?
> The Variation of a trait in a population, where the trait ranges continuously from one extreme to another preventing the subdivision into distinct classes.
What is Discontinuous Variation?
> The Variation of a trait in a population that can be ascribed two or more districts forms.
What is Artificial Selection?
> The Selective breeding of plants and animals where specific traits are modified, to satisfy human needs.
What is Speciation?
> The Evolutionary process by which new biological species arise, due to the splitting of the lineage.
What are the Two Laws Lamarck came up with for Evolution?
> The Law of Use and Disuses
The Law of Inheritance of modified/acquired characteristics.
What is Bipedalism?
> The ability to walk on two feet.
