Traits and Reproduction Success - 3rd Grade Science
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Which option best describes why two individuals of the same species can have different traits?
Which option best describes why two individuals of the same species can have different traits?
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They inherit different trait versions from their parents. Genetic mixing creates unique trait combinations.
They inherit different trait versions from their parents. Genetic mixing creates unique trait combinations.
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What does trait variation mean within a group of the same kind of organism?
What does trait variation mean within a group of the same kind of organism?
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Individuals have different versions of the same trait. Like different eye colors in humans or wing patterns in butterflies.
Individuals have different versions of the same trait. Like different eye colors in humans or wing patterns in butterflies.
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What is a trait in an organism, as used when discussing survival and reproduction?
What is a trait in an organism, as used when discussing survival and reproduction?
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A characteristic of an organism, such as color, beak shape, or fur thickness. Physical features that can vary between individuals of the same species.
A characteristic of an organism, such as color, beak shape, or fur thickness. Physical features that can vary between individuals of the same species.
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Which statement is correct about learned behaviors and natural selection on traits?
Which statement is correct about learned behaviors and natural selection on traits?
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Learned behaviors are not inherited traits passed to offspring. Only genetic traits, not skills, pass to the next generation.
Learned behaviors are not inherited traits passed to offspring. Only genetic traits, not skills, pass to the next generation.
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Which beak type is most likely to increase reproduction success when only hard seeds are common?
Which beak type is most likely to increase reproduction success when only hard seeds are common?
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A strong, thick beak. Can crack tough shells that thin beaks cannot.
A strong, thick beak. Can crack tough shells that thin beaks cannot.
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Which trait variation best helps an owl catch prey at night, increasing reproduction success?
Which trait variation best helps an owl catch prey at night, increasing reproduction success?
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Better night vision. Sees prey in darkness when other hunters cannot.
Better night vision. Sees prey in darkness when other hunters cannot.
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Identify the trait most likely to increase reproduction success in a hot desert environment.
Identify the trait most likely to increase reproduction success in a hot desert environment.
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Ability to conserve water. Prevents dehydration where water is scarce.
Ability to conserve water. Prevents dehydration where water is scarce.
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Which statement best explains why camouflage can increase reproduction success?
Which statement best explains why camouflage can increase reproduction success?
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It helps an organism avoid predators and survive to reproduce. Hidden prey lives longer and has more babies.
It helps an organism avoid predators and survive to reproduce. Hidden prey lives longer and has more babies.
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Choose the best conclusion: If more individuals with Trait A survive and reproduce, what happens over time?
Choose the best conclusion: If more individuals with Trait A survive and reproduce, what happens over time?
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Trait A becomes more common in the population. Successful traits spread through more offspring.
Trait A becomes more common in the population. Successful traits spread through more offspring.
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Identify the most likely outcome if a trait makes an animal easier for predators to see.
Identify the most likely outcome if a trait makes an animal easier for predators to see.
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Lower survival and fewer offspring. Visible prey gets eaten before reproducing.
Lower survival and fewer offspring. Visible prey gets eaten before reproducing.
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Choose the best trait for a moth on dark tree bark: light wings or dark wings?
Choose the best trait for a moth on dark tree bark: light wings or dark wings?
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Dark wings. Dark wings provide camouflage against dark bark.
Dark wings. Dark wings provide camouflage against dark bark.
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Which statement is correct: A) all traits help B) some traits help and some traits hurt reproduction?
Which statement is correct: A) all traits help B) some traits help and some traits hurt reproduction?
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B) Some traits help and some traits hurt reproduction. Traits can be beneficial, harmful, or neutral.
B) Some traits help and some traits hurt reproduction. Traits can be beneficial, harmful, or neutral.
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What happens to a helpful inherited trait over many generations?
What happens to a helpful inherited trait over many generations?
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It becomes more common in the population. Helpful traits spread as carriers have more offspring.
It becomes more common in the population. Helpful traits spread as carriers have more offspring.
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What happens to a harmful inherited trait over many generations?
What happens to a harmful inherited trait over many generations?
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It becomes less common in the population. Harmful traits decrease as carriers have fewer offspring.
It becomes less common in the population. Harmful traits decrease as carriers have fewer offspring.
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Which factor most directly links traits to reproduction success: ability to get food, or the phase of the Moon?
Which factor most directly links traits to reproduction success: ability to get food, or the phase of the Moon?
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Ability to get food. Food access directly affects survival and reproduction.
Ability to get food. Food access directly affects survival and reproduction.
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