Evolution: Changes Over Time

Darwin observed many different species of finches while on the Galapagos Islands, what did he conclude about the finches?

• a. They evolved from a common ancestor on the main land

• b. They evolved from many different types of birds

• c. They all came from different countries

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NGSS.MS-LS4-2

Which statement best describes the process of evolution?

• Populations can survive in different locations on Earth

• Environmental conditions can limit the number of species on Earth

• The traits of a species can change over time

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NGSS.MS-LS4-2

Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?

• Light moths were easy to see against sooty trees & were eaten

• Light moths were killed by the soot

• The birds that ate the dark moths were killed by the soot

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Modern whales developed their traits through natural selection. What occurs during natural selection?

• Organisms choose mates from other species to create new species

• Breeders selectively cross organisms with desired traits

• Only the fittest organisms can survive and reproduce

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NGSS.MS-LS4-4

Which of these would be considered an adaptation for an animal that lives in the snowy tundra?

• Large flat feet

• A thick coat of fur and blubber

• Webbed feet

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Which bird is best adapted to live in a watery environment?

• One with short fat legs and large claws

• One with short legs and large webbed feet

• One with long skinny legs and three thick toes with claws

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Which of the following items is most likely preserved as a fossil?

• A flower

• Blood

• A tooth

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NGSS.MS-LS4-1

Most fossils are found in:

• igneous rock

• sedimentary rock

• metamorphic rock

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What does the fossil record tell scientists?

• Only dinosaurs have formed the fossils scientists have discovered

• There are very few organisms that have gone extinct

• Species have evolved over time

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Over generations, populations of anteaters have developed longer tongues. Why might such a change occur?

• Long tongues help anteaters escape from predators

• Anteaters with long tongues require less food than anteaters with short tongues

• Anteaters with long tongues can reach food sources other animals cannot

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