Physical Traits

Arctic foxes are white in the winter to blend in with the snow. What adaptation is this?

• behavioral adaptation

• camouflage

• migration

• hibernation

Which is most likely the reason parents and their children have similar physical traits?

• They live in the same home.

• They have similar genetic structures.

• They are born in similar environments.

• They have similar blood types.

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Every living thing has a set of characteristics. These are the things you use to identify something, like the fact that a tiger has black stripes or that a sea star has five legs. You have characteristics too, like your hair and eye color and your favorite foods and activities. Biologists call these things traits.

Which of the following is an example of a trait?

• Goldfinches are yellow with black and white wings.

• Sharks have multiple rows of teeth. wings.

• Marco has brown eyes.

• all of the above

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Have you ever seen someone who looks just like one of their parents? Children can look like their parents because of something called heredity. Heredity is the passing down of genes from generation to generation. Children got about half of their DNA from each of their biological parents. Together, genes tell the body how to function and what to look like. The traits that come from parents are called inherited traits. Your inherited traits are with you from birth.

• what a person learns in school

• a person’s biological parents

• a person's friends

• a person’s environment

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Which is an example of a trait that is inherited?

• dimples

• intelligence

• weight

• favorite color

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Which of these traits is most influenced by a person’s environment?

• ability to roll the tongue

• blood type

• weight

• eye color

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Which is a trait children most likely inherit from their parents?

• favorite color

• food preference

• freckles

• weight

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Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs more than other people. How do these people most likely get this trait?

• They learn it from friends.

• They inherit it from their parents.

• They get it as a result of an illness.

• They get it as a result of their jobs

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Which characteristic is the best example of an inherited trait?

• short hair

• eye color

• pierced ears

• long fingernails

A sea turtle's rubbery shell is an example of what kind of trait?

• Physical trait

• Behavioral trait

• Non inherited trait

• Learned trait