Natural selection

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

These moths are all the same species. The differences between their wings is an example of ________________

• Natural Selection
• Variation
• Homeostasis
• Extinction

Which of the following explains adaptation.

• An individual organism changes to meet its needs in the environment. These changes pass down to their offspring.
• The species as a whole changes their characteristics.
• Beneficial traits allow organism to survive and pass on those traits
• New characteristics arise in a species as needed.  If these traits are helpful, they are passed down.

When an environment changes faster that an species can adapt, the most likely outcome is...

• ...biological evolution.
• ...voluntary mutation
• ...species extinction
• ...selective breeding

Evolution works by 

• individuals changing to suit their environment
• Individuals learned new traits and pass them on
• sudden change in the environment cause a species change 
• small changes pass down through many generations

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
• Hardey-Weinberg equilibrium within a population

Natural selection results in change in a population's _____________ traits over time.

• inherited

• acquired

Organisms with the most beneficial traits will survive.  This is commonly known as

• theory of evolution.
• variations.
• survival of the fittest.
• ecosystems.

This scientist developed the theory of evolution as he studied the finches.

• Charles Darwin
• Isaac Newton
• Albert Einstein
• Marie Curie