OPSE Natural Selection Examples
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Last updated over 1 year ago
24 questions
1
An organism's traits are determined by its DNA
An organism's traits are determined by its DNA
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There are no genetic variations in populations
There are no genetic variations in populations
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Variations or differences in individuals are due to mutations
Variations or differences in individuals are due to mutations
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In natural selection the organism with the best traits survive and reproduce
In natural selection the organism with the best traits survive and reproduce
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Organisms with "bad" traits can change their traits in order to survive
Organisms with "bad" traits can change their traits in order to survive
1
How many blue snakes are there in the population?
How many blue snakes are there in the population?
1
How many brown snakes are there in the population?
How many brown snakes are there in the population?
1
How many green snakes are there in the population?
How many green snakes are there in the population?
1
Which color(s) of snakes are best suited for the environment grass and dirt environment?
Which color(s) of snakes are best suited for the environment grass and dirt environment?
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Which color of snake is more likely to be seen by predators?
Which color of snake is more likely to be seen by predators?
1
The blue snakes are most likely to be eaten by birds. What will happen to the blue allele (gene) in the population?
The blue snakes are most likely to be eaten by birds. What will happen to the blue allele (gene) in the population?
1
Using the concept of natural selection, explain why the blue snakes went extinct.
Using the concept of natural selection, explain why the blue snakes went extinct.
1
Due to the drought the environment is mostly brown dirt. Which color snake is "best fit" for the environment?
Due to the drought the environment is mostly brown dirt. Which color snake is "best fit" for the environment?
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Make a prediction. The number of brown snakes will
Make a prediction. The number of brown snakes will
1
Make a prediction. The number of green snakes will
Make a prediction. The number of green snakes will
1
Using the concept of natural selection explain why the population of snakes shifted to mostly brown snakes. Use the words survive and best fit in your response.
Using the concept of natural selection explain why the population of snakes shifted to mostly brown snakes. Use the words survive and best fit in your response.
1
What happened to the allele frequency of green snakes in the population?
What happened to the allele frequency of green snakes in the population?
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If there were no birds in the area, would there be a shift in the population to mostly brown snakes?
If there were no birds in the area, would there be a shift in the population to mostly brown snakes?
1
The Owenoid fish are all different sizes. What causes the differences in the fish size?
The Owenoid fish are all different sizes. What causes the differences in the fish size?
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What size fish is best suited for the environment?
What size fish is best suited for the environment?
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Why are the large fish not eaten by the sharks?
Why are the large fish not eaten by the sharks?
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Why are the small fish not eaten by the sharks?
Why are the small fish not eaten by the sharks?
1
Predict what will happen to the number of medium sized fish.
Predict what will happen to the number of medium sized fish.
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What type of natural selection is seen in the Oweniod fish?
What type of natural selection is seen in the Oweniod fish?