Mechanisms
A Theory
World Traveler
The Evidence
Four Conditions
100

An alteration in the DNA sequence of an organism.

What is a Mutation?

100

A theory (explanation) supported by evidence for how populations change over time.

What is the Theory of Evolution?

100

Charles Darwin

Who is the father of Evolution by Natural Selection?

100
The hip bones of a dolphin and the tailbone of a human
What are Vestigial Structures?
100

When populations produce more offspring than can survive.

What is Overproduction?

200

The transfer of genetic material from one population to another. 

What is Gene Flow? 

200
The variety of dog and cat breeds that we have today are a product of _________ _____________.
What is Artificial Breeding (Selective Breeding)
200

A group of organisms that can interbreed and produce fertile offspring.

What is a species?

200
An example of a structure that is homologous to a cat’s paw.
What is a Dog’s paw, human arm, bat wing, whale flipper
200

When individuals in a population differ from one another. 

What is Variation?

300

The type of reproduction that produces tremendous genetic variation in offspring.

What is Sexual Reproduction? (Genetic Recombiination)

300

The level of ability an organism has to survive and reproduce in its environment.

What is it's Fitness?

300

Darwin was a naturalist on this ship that traveled around the world in 1831.

What is the HMS Beagle?

300

Body parts that share a common function but have a different structure

What is an Analogous Structure?

300

When traits are passed down from parents to their children.

What is Heritability?

400

Random indiscriminate change in allelic frequencies in a population. 

What is Genetic Drift? 

400

A population, if left unchecked, will grow _____

What is Exponentially (with a J-curve)?

400

The name of the islands where Darwin studied and gathered his evidence on Natural Selection

What are The Galapagos Islands?

400

The study of plant and animal distribution around the world. 

What is Biogeography? 

400

When a trait helps an organism survive and have more offspring than other organisms.

What is Reproductive Advantage? 

500

Evolution can only occur if this is involved.

What is random mutations that change the fitness of individuals?

500
The survival and reproduction of the organisms that are genetically best fit for their environment
What is the definition of Natural Selection?
500

Type of bird species Darwin noticed that has varying sizes of beaks as adaptations to what they ate. 

What are Finches? 

500

In embryology, when two embryos are very similar to each other they must have a shared ______ ______. 

What is a shared Common Ancestor?

500

The book Darwin wrote that introduced the Theory of Evolution. 

What is "On the Origin of Species by Means of Natural Selection"?

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