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What is natural selection?
process in which helpful traits become more common over time
a trait that helps an organism survive better
Adaptations can be:
ability to survive cold weather
all of the above
Differences in traits are called:
A species could go extinct if:
food becomes more plentiful.
members of the species have adaptations to enhance survival.
the environment changes drastically and no one can adapt.
there is less competition for resources.
Natural selection occurs during the lifetime of a single organism.
What is most likely to happen to moth populations in the picture shown?
Light moths--hunted easily, dark moths--population increase
Dark moths--hunted easily, dark moths--population increase
Light moths--hunted easily, light moths--population increase
Lights moths will change their color to match dark moths.
What type of environment do you think this data was collected from?
forest with primarily white-bark trees
forest with primarily dark-bark trees
A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:
the green population to increase and the yellow to decrease
both populations should stay the same
both populations will increase
the green population to decrease and the yellow to increaseThis is a wrong answer
TRUE or FALSE: Natural selection will still occur if each individual has the same exact traits
How do you "win" at natural selection?
survive & reproduce
Due to pollution, a pond becomes darker over time. Which trait variation became more common?
What word describes a trait that helps an organism survive in its environment?
In a cold environment what would be some adaptive traits? Sellect all that apply.
What is a trait?
the quality or characteristic of an organism
the DNA of an organism
when mutatuons cause extra limbs.