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Nat. Select + Evol

Unit 3

QuestionAnswer
Natural Selection the process driven by selecting factors that determine which adaptations are favorable for survival
Evolution the change in a species over time
Frequency how common an allele/trait is in a population
Variation differences in DNA + phenotype across species or in populations
Selective Advantage trait that increases the likelihood of survival
Adaptation a trait that increases an organism's survival and reproduction in a specific environment
Mutation a change in the DNA sequence of an organism
Trait physical feature of an organism
Competition when species must fight for natural resources to survive
Prokaryote a unicellular organism that lacks a nucleus and membrane-bound organelles
Eukaryote an organism whose cells contain a nucleus and other membrane-bound organelles
Taxonomy the study and classification of organisms (living and extinct)
Amino Acid building blocks of proteins
DNA the molecule that carries the genetic instructions for an organism's development and functioning
Homologous Structure Similar body parts in different species (that may serve different functions) that show a common ancestor
Vestigial Structure a feature that a species inherited from an ancestor but that is now less elaborate and functional than in the ancestor
Created by: dpietropaoloblue
 

 



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