Artificial and Natural Selection

What theory proposes that organisms with traits better suited to their environment are more likely to survive and reproduce?

• Acquired Characteristics

• Embryology

• Survival of the Smartest

• Natural Selection

The fur of the snowshoe rabbit changes to a lighter color in the winter. This allows the rabbit to blend in with its surroundings. This change is an example of:

• Adaptation

• Extinction

• Competition

• Succession

Due to genetic inheritance, members of a species can be slightly different from another in their traits. This is known as...

• Variation

• Overproduction

• Competition

• Evolution

Animals may fight, make threatening sounds,and act aggressively toward members of the same species. These behaviors usually occur as the result of:

• Adaptation

• Evolution

• Competition

• Variation

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

Evolution typically happens...

• in a few weeks
• over millions of years
• never
• in 100 years

Bird's beaks evolve mainly due to the type of ___________________ available.

• food
• water
• shrubs
• mates

What can happen to a species over time if some of the organisms have an advantage?

• The population will decrease
• The population will become extinct
• The population will slowly increase

Why do peppered moths tend to be the same color as the trees on which they live?

• The coloring goes along with tasting like the tree. 
• It keeps the moth the same temperature as the tree. 
• It makes the moths faster than the birds
• It makes the moths harder to see.

Which of these is an example of natural selection?

• The largest animal in a population will have more opportunities for reproduction.
• Several species of organisms work together so that they all succeed.
• One species takes all the resources in an environment leaving none for others.
• Organism that are best suited to an environment tend to survive and reproduce more often.