The Theory
This is the scientific explanation for how evolution happens.
What is the Theory of Evolution?
What was Charles Darwin?
What is a naturalist and or biologist?
In natural selection, this is the agent that "selects" for or against traits of an organism.
What is the environment?
The vocab word that means the change of living things over time
What is evolution?
Any trace or remains of a once-living organsim that has been preserved by natural processes.
What is a fossil?
Organisms often have more ____________ than will survive.
What is offspring?
Where did Darwin gain evidence of natural selection?
What is the Galapagos Islands?
animals that have certain beneficial traits will survive better over time- survival of the best adapted- nature determines who will "win"
What is natural selection
Type of diagram that shows the relationship of organisms to their ancestors as well as common ancestry.
What is a phylogenetic/evolutionary tree?
What environmental factors have caused changes in the horses leg length?
What is a change in their environment?
What type of trait gets passed on to support survival and reproduction of a species?
What is a favorable trait?
An explanation of events in the natural world based on observations. Unlike a scientific law, this can be falsified or changed.
what is a Scientific Theory?
How do homologous structures provide evidence to support the theory of evolution?
What is a common ancestor?
The process whereby organisms that have advantages survive and pass their genes onto their offspring.
What is natural selection?
What animals did Charles Darwin observe that helped lead him to his theory of evolution?
What is either finches beaks or tortoise shells
this type of dating is expensive, sometimes not possible, and destroys part of the fossil in the process
What is absolute dating?
the line of biological descent of an individual from their ancestors.
What is a ancestry?
How long does natural selection lead to evolution?
What is millions of years?
Structures, such as a bat's wing and a butterfly's wing
What are analogous structures?
a body part or behavior that has lost most or all of its original function over time through evolution. It is a leftover part that was once useful to an organism.
What is a vestigial structure?
When an organism has a common structure, a common ancestor, but a different function they are called?
What is homologous?
The study of unborn organisms to reveal likenesses between species.
What is embryology?
The alteration of a gene in an organism.
What is a mutation?