Darwin & Natural Selection
The survival and reproduction of the organisms that are genetically best fit for their environment
What is the definition of Natural Selection?
These structures are inherited from a common ancestor.
What are homologous structures?
A random change in allele frequency is called this.
What is genetic drift?
Evolution means organisms do this over time.
What is change?
The ability of an organism to survive and reproduce in its environment.
What is Fitness?
A trait that increases survival and reproduction is called this.
What is an adaptation?
Structures with similar functions but different structures are called these.
What are analogous structures?
This effect occurs after a population dramatically decreases in size.
What is the bottleneck effect?
The preserved remains or traces of ancient organisms are called these.
What are fossils?
A bird wing and a bee wing are examples of these structures.
What are analogous structures?
Charles Darwin
Who is the father of Evolution?
The name of the islands where Darwin studied and gathered his evidence on Natural Selection
What are The Galapagos Islands?
This effect occurs when a small group starts a new population.
What is the founder effect?
The idea that all species come from ancient ancestors is called this.
What is common descent?
A group of organisms that look alike and can reproduce
What is a species?
Evolution can only occur is this is involved
What is Genetic diversity?
This type of evidence comes from preserved remains of ancient organisms.
What are fossils?
When allele frequencies do not change, this occurs.
What is genetic equilibrium?
Differences in survival and reproduction are known as this.
What is differential reproductive success?
The number of times an allele appears in a population is called this.
What is allele frequency?
Two different organisms are alike, they share this in their bloodline
What is a Common Ancestor?
Whales having tiny hipbones supports this type of evidence.
What are vestigial structures?
Unlike natural selection, genetic drift happens because of this.
What is chance/random events?
The movement and distribution of species around the world is called this.
What is biogeography?
This type of selection is controlled by humans.
What is artificial selection?