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3/23/20: Natural Selection and the Bajau people
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Questions 1 to 6 are from the video "Recipe for Natural Selection"
1. The three ingredients of natural selection are:
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2. Variation means:
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3. Heritability means:
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4. Heritable differences are written in ________ .
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5. Reproductive advantage means:
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6. Changes due to natural selection happen:
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to an individual
over many generations
Use the assigned article to answer questions 7-10:
"The Bajau people are good at deep diving because it's in their genes"
7. Read the introduction [paragraphs 1-5]. Which sentence from the introduction states the MAIN idea about why evolution is important?
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Genes are passed down from parents to children.
It shows how living things become better at living in their environment.
The Bajau people are able to dive up to 200 feet underwater.
The Bajau people in Southeast Asia are amazing divers.
8. Finish the sentence: "One MAIN idea of the article is that ____."
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the Bajau people have special genes that help make them good at diving.
some seals are like Bajau people because they can dive longer than others.
scientists are interested in what kinds of genes the Bajau people have.
there were special tools used to take pictures of the Bajau people's bodies.
9. How did the Bajau people change because of evolution?
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They learned to dive by watching nearby seals.
They developed larger spleens than other people.
They developed organs called spleens in their bodies.
They learned to hunt fish by diving under water.
10. Why are the changes to the Bajau people's bodies important?
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They help them keep from getting some kinds of illness.
They help them in situations where there is not much air.
They help them learn to use weights and goggles to dive.
They help them see underwater in order to catch fish.
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