Week 33 Practice:How Are You Like a Blue Whale Article Questions

What is the main difference between blue whales and fish?

• Blue whales can breathe underwater.

• Blue whales are mammals, not fish.

• Blue whales lay eggs.

• Blue whales have shiny scales.

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How do scientists determine the connection between two species?

• By studying their habitats.

• By comparing their colors.

• By comparing their skeletons.

• By observing their behaviors.

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What do blue whales and humans have in common?

• Both have gills.

• Both lay eggs.

• Both have shiny scales.

• Both produce milk for their babies.

What evidence do paleontologists use to study extinct species?

• Modern animal behavior.

• Interviews with witnesses.

• Fossils.

• Live video footage.

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What is a common ancestor?

• A population from which different species evolved.

• A well-known historical figure.

• A popular character in ancient stories.

• A species that is common in many areas.

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Why can't whales breathe underwater?

• Because they are mammals.

• Because they only eat plants.

• Because they have lungs, not gills.

• Because they sleep underwater.

What do the bones in a human arm and a blue whale flipper have in common?

• They fit together in similar ways.

• They are both made of cartilage.

• They are invisible to X-rays.

• They are both used for flying.

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How long ago did the common ancestor of whales and humans live?

• About 100 years ago.

• About 65 million years ago.

• About 4 billion years ago.

• About 2000 years ago.

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What do all living things share?

• The ability to breathe underwater.

• Shiny scales.

• A common evolutionary history.

• The ability to fly.

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What is the significance of shared body structures in different species?

• They show that those species have the same color.

• They mean that those species live in the same habitat.

• They suggest that those species evolved from a common ancestor.

• They indicate that those species have the same diet.

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