Genetics and Adaptations

This means the better adapted organisms survive to pass traits along to offspring.

• Evolution

• Natural Selection

• Extinction

• Artifical Selection

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What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

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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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The purpose of selective breeding is to 

• Get bigger animals
• get smaller animals
• create animals with desirable traits
• create animals with bad traits

When comparing the offspring of sexually and asexually reproducing organisms, we would expect the genetic material (DNA) of the sexually reproducing organism to -

• contain fewer mutations
• be lesser in quantity
• be simpler overall
• show more variation

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

• natural selection

• mutation

• camouflage

• adaptation

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The illustration traces the development of the corgi dog over several generations as a result of human activity.  This is an example of the human activity called

• mutation
• genetic engineering
• selective breeding
• natural selection

Individuals in a population that have the traits needed to survive in the environment get to survive and reproduce. Their offspring inherit those traits. Over time, a greater percentage of the population will have those successful traits.

• Natural selection

• Selective breeding

• Artificial selection

• Mutations

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The coral snakes that were able to survive the summer drought reproduced. Their offspring will likely be able to tolerate drought.

Natural selection [or] Selective breeding?

• Natural selection

• Selective breeding

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What is an example of a structural adaptation?

• The conditions a snail lives in

• What a snail eats

• A snail's shell protects it from predators

• They have none