Show:
History
Natural Selection
Evidence
Variation
Speciation
100
Charles Darwin joined the crew of this ship and set sail from England in 1831.
What is the H.M.S. Beagle?
100
In this process Nature provides all of the varieties and Man selects the variations that are found most useful.
What is artificial selection?
100

This type of scientist studies how the Earth has changed over billions of years.

What is a geologist?

100
Mutations and gene shuffling as a result of sexual reproduction are the two main sources of this phenomena.
What is genetic variation?
100
Changes can lead to the formation of a new species.
What is speciation?
200
Charles Darwin made many observations and collected what would become evidence of Evolution on these islands west of Ecuador.
What are the Galapagos Islands?
200

An inherited characteristic that improves an organism’s ability to survive and reproduce in a particular environment.

What is an adaptation?

200

This phrase means "how are living things spread out over the world."

What is the biogeography?

200
This is not a swimming pool filled with Levi's. This is a collection of all the genes that are present in a population.
What is a gene pool?
200
As new species evolve there are isolating mechanisms that prevent populations from making babies. If two populations can no longer produce fertile offspring, this has occurred.
What is reproductive isolation?
300
These preserved remains of ancient organisms show the history of life on Earth.
What is the fossil record or what are fossils?
300

The ability of an organism to survive and reproduce compared to other members of its population.

What is fitness?

300
The prefix of this word means the same in Latin. Arms, legs, flippers, and wings are all built from the same basic bones.
What are homologous structures?
300

This is caused by random change in the gene pool and affects small populations more.

What is genetic drift?

300
This type of isolation is the result of species acting differently. For example some song birds are physically capable of interbreeding but they do not because they have differences in courtship rituals such as different mating songs.
What is behavioral isolation?
400
In 1859 Charles Darwin published this controversial book concerning species diversity, natural selection and evolution.
What is On the Origin of Species?
400
Each living species has descended, with changes, from other species over time.
What is the principle of descent with modification?
400

These small useless body parts that were used previously by ancestors, but are no longer used today. 

What are vestigial structures?

400
A one gene trait like a Widow's Peak or an attached ear lobe.
What is a single-gene trait?
400
Sometimes two populations can be separated by a physical barrier such as a river, ocean, mountain range, or canyon.
What is geographic isolation?
500

The naturalist that proposed that body parts can change due to the use of them. Example: Giraffes long necks. 

Who was Jean-Baptiste Lamarck?

500
Over time this mechanism of evolution causes changes in the inherited characteristics of a population. These changes cause an increase in a species' fitness in its environment. This term is closely related to survival of the fittest.
What is natural selection?
500

Structures of organisms that function similarly but do not come from a common ancestor and are not structured in the same way, such as insect wings and bird wings.

What is an analogous structure?

500
Some traits are controlled by two or more genes like height and skin color.
What are polygenic traits?
500
This is when similar species cannot reproduce because they mate at different times.
What is temporal isolation?