Evidence for Evolution
A scientific statement written in the format "If...then...because"
What is a hypothesis?
The mechanism of evolution that involves the movement of individuals from one population to another
What is gene flow?
The type of characteristic that a scar represents
What is an acquired characteristic?
The term for the offspring between two different species
What is a hybrid?
The correct way to write the scientific name for a black bear
What is Ursus americanus?
Evolution, which provides an explanation for how species change over time, is an example of this type of scientific statement
What is a theory?
The type of sexual selection represented when a male peacock uses his bright tail feathers to attract a female peacock
What is intersexual selection?
The scientist who argued that individuals could pass down acquired characteristics to their offspring
Who is Jean-Baptiste Lamarck?
The type of barrier to reproduction represented when two species of frogs mate at different times
What is temporal isolation?
The two species who are most closely related on this phylogenetic tree
What are the alligator and bald eagle?
Because kangaroos are found only in Australia, this provides evidence that they evolved when in comparison to the break-up of Pangaea
What is after the break-up of Pangaea?
What are gene flow and mutation?
The type of selection shown in this graph
What is stabilizing selection?
The biological definition of a species
What is when two groups of organisms can mate to produce viable, fertile offspring?
What is mammals?
The wings of bats and butterflies - similar due to a common environment - are examples of this type of structure
What is an analogous structure?
The two mechanisms of evolution that are based on fitness
What are natural selection and non-random mating?
The type of selection demonstrated when white rabbits survive the best in the Arctic due to camouflage over grey and black rabbits
What is directional selection?
The barrier to reproduction represented when the offspring of a sheep and a goat is unable to reproduce itself
What is hybrid sterility?
The letter of the most recent common ancestor of birds and lizards and snakes
What is g?
Embryology provides evidence that all living creatures evolved from this
What is a common ancestor?
The specific type of genetic drift that occurs when a natural disaster kills off a portion of the population
What is a population bottleneck?
The four requirements for natural selection
What are variation, inheritance of that variation, superfecundity, and non-random mortality?
The type of speciation that occurs without physical separation
What is sympatric speciation?
The type of scientific statement represented by a phylogenetic tree
What is a hypothesis?