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Variations in traits
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Variation refers to the ________ in traits among individuals of the same species.
differences
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Give an example of a trait.
eye color, height, hair type, skin color, or shape of leaves in plants.
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Give one example of genetic variation in humans.
attached vs. free-hanging ear lobes. brown eyes vs. blue eyes
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Differences in the number of ________ can cause genetic variation.
chromosome
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What does variation mean?
Differences in traits among individuals of the same species
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Give an example of variation in animals.
Different fur color in dogs, different patterns on butterfly wings, difference in beak shape among birds.
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What is the passing of traits from parents to offspring called?
Inheritance or heredity.
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Your friend has natural curly hair, but you have straight hair. What kind of variation is this?
Genetic variation
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If everyone looked exactly the same, would there be any variation?
No
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Give one example of environmental variation in plants.
Plants in dry areas have smaller leaves to prevent water loss.
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What do we call the features like eye color, height, or hair type?
Traits
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Which of these is not inherited: hair color, eye color, or accent?
Accent
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Different fur colors in dogs and patterns on butterfly wings are examples of ________.
variation
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Diet and nutrition are external factors that can cause variation.
True
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Give one example of environmental variation in humans.
Sunlight affecting skin tone.
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True or false: Differences in the number of chromosomes can cause genetic variation.
True
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