Traits Improve Survival - Middle School Life Science
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What is the term for a trait that increases an organism’s survival or reproductive success?
What is the term for a trait that increases an organism’s survival or reproductive success?
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Adaptation. Adaptations help organisms better survive in their environment.
Adaptation. Adaptations help organisms better survive in their environment.
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What is the term for an organism’s ability to survive and produce fertile offspring?
What is the term for an organism’s ability to survive and produce fertile offspring?
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Fitness. Fitness measures reproductive success, not just survival.
Fitness. Fitness measures reproductive success, not just survival.
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What is the difference between survival advantage and reproductive advantage?
What is the difference between survival advantage and reproductive advantage?
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Survival: live longer; reproductive: produce more offspring. Survival helps organisms live; reproduction creates offspring.
Survival: live longer; reproductive: produce more offspring. Survival helps organisms live; reproduction creates offspring.
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Which type of evidence best supports that a trait improves survival: higher predator kills or lower predation rate?
Which type of evidence best supports that a trait improves survival: higher predator kills or lower predation rate?
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Lower predation rate. Lower predation means fewer individuals are killed by predators.
Lower predation rate. Lower predation means fewer individuals are killed by predators.
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Identify the best evidence that a trait increases reproduction in a population.
Identify the best evidence that a trait increases reproduction in a population.
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Individuals with the trait produce more offspring on average. More offspring directly shows reproductive success.
Individuals with the trait produce more offspring on average. More offspring directly shows reproductive success.
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Which option is the strongest evidence for camouflage: more predators nearby or fewer individuals eaten?
Which option is the strongest evidence for camouflage: more predators nearby or fewer individuals eaten?
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Fewer individuals eaten. Direct survival data shows camouflage effectiveness.
Fewer individuals eaten. Direct survival data shows camouflage effectiveness.
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Identify the type of adaptation: a bird migrates to find food during winter.
Identify the type of adaptation: a bird migrates to find food during winter.
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Behavioral adaptation. Migration is an action that improves survival chances.
Behavioral adaptation. Migration is an action that improves survival chances.
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Which statement is the best claim: 'All traits are helpful' or 'Some traits increase fitness in certain environments'?
Which statement is the best claim: 'All traits are helpful' or 'Some traits increase fitness in certain environments'?
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Some traits increase fitness in certain environments. Traits are beneficial only in specific environmental contexts.
Some traits increase fitness in certain environments. Traits are beneficial only in specific environmental contexts.
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What is the term for a behavior that helps an organism survive or reproduce?
What is the term for a behavior that helps an organism survive or reproduce?
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Behavioral adaptation. Behaviors like hunting or mating displays improve fitness.
Behavioral adaptation. Behaviors like hunting or mating displays improve fitness.
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What is the term for a body feature that helps an organism survive or reproduce?
What is the term for a body feature that helps an organism survive or reproduce?
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Structural adaptation. Physical features like wings or shells aid survival.
Structural adaptation. Physical features like wings or shells aid survival.
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What is the term for an internal process that helps an organism survive or reproduce?
What is the term for an internal process that helps an organism survive or reproduce?
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Physiological adaptation. Internal processes like metabolism support life functions.
Physiological adaptation. Internal processes like metabolism support life functions.
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Which evidence best supports a reproductive advantage: longer lifespan or more successful matings?
Which evidence best supports a reproductive advantage: longer lifespan or more successful matings?
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More successful matings. Mating success directly measures reproductive advantage.
More successful matings. Mating success directly measures reproductive advantage.
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Identify the type of adaptation: thick fur that reduces heat loss in cold climates.
Identify the type of adaptation: thick fur that reduces heat loss in cold climates.
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Structural adaptation. Fur is a physical feature that provides insulation.
Structural adaptation. Fur is a physical feature that provides insulation.
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Identify the type of adaptation: venom that helps capture prey and reduces injury risk.
Identify the type of adaptation: venom that helps capture prey and reduces injury risk.
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Physiological adaptation. Venom production is an internal chemical process.
Physiological adaptation. Venom production is an internal chemical process.
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Which option is the best evidence that a trait is heritable: it appears after training or it is passed to offspring?
Which option is the best evidence that a trait is heritable: it appears after training or it is passed to offspring?
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It is passed to offspring. Heritable traits are genetic and passed through reproduction.
It is passed to offspring. Heritable traits are genetic and passed through reproduction.
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What is the term for a trait that helps one organism attract mates, even if it reduces survival?
What is the term for a trait that helps one organism attract mates, even if it reduces survival?
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Sexual selection trait. These traits improve mating success despite survival costs.
Sexual selection trait. These traits improve mating success despite survival costs.
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Which conclusion is best supported if the trait’s frequency increases over generations in the same environment?
Which conclusion is best supported if the trait’s frequency increases over generations in the same environment?
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The trait likely increases fitness in that environment. Increasing frequency indicates the trait provides advantages.
The trait likely increases fitness in that environment. Increasing frequency indicates the trait provides advantages.
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Which evidence best supports that a warning coloration trait reduces predation?
Which evidence best supports that a warning coloration trait reduces predation?
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Predators avoid the colored individuals after negative experiences. Learned avoidance shows the trait effectively warns predators.
Predators avoid the colored individuals after negative experiences. Learned avoidance shows the trait effectively warns predators.
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Identify the best claim supported by: moths with darker color survive better on soot-dark trees.
Identify the best claim supported by: moths with darker color survive better on soot-dark trees.
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Darker coloration is adaptive in soot-dark habitats. Dark moths blend with soot-covered surfaces.
Darker coloration is adaptive in soot-dark habitats. Dark moths blend with soot-covered surfaces.
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What is the term for an inherited characteristic that can affect survival or reproduction?
What is the term for an inherited characteristic that can affect survival or reproduction?
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Trait. Inherited characteristics can vary and affect organism success.
Trait. Inherited characteristics can vary and affect organism success.
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What is fitness in natural selection, based on survival and reproduction?
What is fitness in natural selection, based on survival and reproduction?
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Ability to survive and produce more offspring than others. Fitness measures reproductive success, not just survival.
Ability to survive and produce more offspring than others. Fitness measures reproductive success, not just survival.
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What is an adaptation in the context of evolution by natural selection?
What is an adaptation in the context of evolution by natural selection?
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An inherited trait that increases survival or reproduction. Adaptations are heritable traits that enhance fitness.
An inherited trait that increases survival or reproduction. Adaptations are heritable traits that enhance fitness.
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What is natural selection, stated as a cause-and-effect process?
What is natural selection, stated as a cause-and-effect process?
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Individuals with helpful traits leave more offspring, so traits spread. Differential reproduction drives trait frequency changes.
Individuals with helpful traits leave more offspring, so traits spread. Differential reproduction drives trait frequency changes.
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What is camouflage, and what survival benefit does it provide?
What is camouflage, and what survival benefit does it provide?
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Blending in to avoid predators or to ambush prey. Matching surroundings helps avoid detection.
Blending in to avoid predators or to ambush prey. Matching surroundings helps avoid detection.
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What is mimicry, and what is its typical survival benefit?
What is mimicry, and what is its typical survival benefit?
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Resembling another species to reduce predation. Looking like dangerous species deters predators.
Resembling another species to reduce predation. Looking like dangerous species deters predators.
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