Evolution and Natural Selection

____ is when members of a species that are best suited for their environment survive and reproduce at a higher rate than other members of the species

• natural selection
• artificial selection
• speciation
• adaptation

Which is necessary for speciation to occur?

• adaptation
• mass extinction
• isolation
• acquired traits

Which of the following means "change over time"

• natural selection
• speciation
• evolution
• isolation

The differences among a species, like different bird beaks, are called

• theories
• variations
• adaptations
• genes

___ are mistakes in the DNA that cause variation within a species.

• mutations
• adaptations
• speciations
• isolations

Any inherited trait that gives an organism an advantage in its environment is called ___.

• a mutation
• an adaptation
• evolution
• natural selection

The evolution of a new species from an existing species is ____.

• natural selection
• isolation
• speciation
• genetic variation

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

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

Most organisms have more offspring than will survive 

• True
• False

Why are advantageous traits more likely to be passed on to the offspring?

• Because parents with those traits can teach their offspring
• Because parents with those traits can surive and reproduce better
• Because parents with those traits care more about their offspring