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What is natural selection?

• a short change over a short time period.

• the process by which organisms better suited for their environment survive and reproduce.

• the process of cells dividing to make new cells.

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What is making deliberate crosses of plants or mating of animals, so the offspring will have a desired characteristic derived from one of the parents.

• Natural Selection

• Adaptation

• Trait

• Selective Breeding

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

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Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

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Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

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Why do frogs and other organism reproduce so many eggs or offspring?

• so that their babies can have friends to play with
• the more offspring the more likely the offspring will survive
• the more offspring the less likely offspring will survive 
• the more offspring the less competition

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

• genes.
• variations.
• traits.
• theories.

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Natural selection is when ____________ decides who survives and who doesn't

• nature
• humans
• animals
• years

Some organisms have colorful appearances to warn their predators (animals that would try to eat them) that they are harmful or do not taste good. If other species, that are not harmful, mimic these colors how would that help them reproduce?

• The bright colors would help them attract more mates and allow them to reproduce
• Because they have similar colors they can mate with the harmful species to create hybrids
  
• Bright colors help them be more visible in the dark and most mating occurs after dark
• The similar markings and colors will increase their chance of predators avoiding them and allow them to survive to reproduce

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If a mouse population changes color from white to black over many generations due to their environment, what selection is taking place?

• Natural Selection 
• Selective Breeding
• Artificial Selection 
• Hydrogen and Helium 

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