Causes of Evolution & Speciation

What is an organism that has similar characteristics and can reproduce?

• species
• organism
• embryology
• vestigial 

What is change in a gene pool over time?

• artificial evolution

• evolution

• natural selection

• sexual selection

An inherited trait that helps an organism survive in its environment is called (a/an)

• adaptation.

• acclimation.

• natural selection.

• sexual selection.

A measure of the reproductive success of an organism is called

• survival of the fittest.

• natural selection.

• evolution.

• fitness.

When traits become more or less common due to an individual organism's ability to obtain mates or better mates is called

• artificial selection

• evolutionary selection

• natural selection

• sexual selection

Darwin's idea that organisms which possess traits well-suited to their environment will survive and increase in population compared to organisms with traits which are less-suited to their environment is called

• artificial selection

• evolutionary selection

• natural selection

• sexual selection

When an organism completely dies out, it is called.....

• adaption
• extinction
• fossilization
• mutation

Mutations are important because they bring about:

• death of the organism in which they develop.
• genetic variation needed for a population to evolve.
• benefits for the individual, not for the population.
• Hardy-Weinberg equilibrium within a population.

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In times of environmental change, the more genetic variation a population has the more likely it will:

• become extinct
• migrate to a new environment
• survive and evolve
• mutate

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If 10 people live on an island and no one can enter or exit, what is the only way new traits can be introduced into the population?

• Natural Selection 
• Artificial Selection 
• Selective Breeding
• Mutations 

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