Natural Selection
Man credited with the idea of evolution by natural selection
Charles Dawin
Biogeography definition
"Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area." Biogeography, Wikipedia
The proper format of a species name
Genus species
Definition of evolution (genetic level)
Shifts in the allele frequency of traits in a population over many generations
definition of adaptation
characteristic that increases an organism's fitness. Exists due to variation in populations
T or F, humans share only a small amount of DNA with chimps, bonobos, and other mammals
False. Humans share a majority of their DNA with other mammals
The separation of populations by barriers such as rivers, mountains, or bodies of water is called
geographic isolation
Movement of a new allele or trait due to emigration
Gene flow
Definition of fitness
Ability of an organism to survive and reproduce
homologous structure/analagous structure definition
homologous: some body part with similar structure that has descended from a common ancestor, but is now used for different purposes
analogous: structure with similar function, NOT from a common ancestor
What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open late in the day
Temporal isolation
genetic drift
Type of selection that favors polygenic traits to be the median characteristic
Stabilizing selection
Fossils show us the changes in organisms. They also show the _____ of it, depending on what layer it is in
age
Definition of species
Group of organisms that can interbreed and produce fertile offspring
Individual favors a mate due to their desirable characteristics/traits
Sexual selection
Type of selection that favors polygenic traits to be the lowest and highest form of a characteristic
disruptive selection
EX: Whales and humans have similar limbs, with the same number and pattern of bones. These bones are different shapes, and used for different functions
homologous structures
Order of 7 levels of classification
Kingdom, Phylum, Class, Order, Family, Genus, Singing
Source of all new traits/DNA sequences
Mutation