Module 5 Review

What did the electric spark simulate?

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How are amino acids important to life?

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What is the process illustrated on this screen?

• Radioactive Decay

• Determining a fossil's age through Radiometric Dating.

• The breakdown of unstable atoms over time.

• The creation of unstable atoms.

Answer explanation

The breakdown of unstable atoms in a sample over time.

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How can scientists use this phenomenon to study ancient life?

Answer explanation

Scientists use it for radiometric dating, to examine the age of fossils on earth.

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About how old is earth according to scientific estimates?

• 14 billion years

• 4.6 million years

• 4.6 billion years

• 2000 years

Photosynthesis causes the release of oxygen into the atmosphere. How might this process have allowed life to flourish?

• Oxygen is needed for more complex organisms to function.

• More complex organisms did not need oxygen to function.

• Most eukaryotes (multicellular organisms) needed oxygen to thrive.

• Most prokaryotic organisms, like cyanobacteria, did not need oxygen to function.

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Which beak do you think is well-adapted for crushing thick seeds with hard shells; and which beak is well-adapted for catching insects?

• The large ground finch beak is better for crushing thick seeds with hard shells; whereas the woodpecker finch beak is well-adapted for catching insects.

• The woodpecker finch beak is better for crushing thick seeds with hard shells; whereas the large ground finch beak is well-adapted for catching insects.

• Neither beak is suitable for either diet.

• Both beaks would be equally suited for either diet.

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Select Green Skipper Butterflies and study the examples from 1940 to 2000. How did the green skipper butterfly population change from 1940 to 2000, and what caused this change?

• The color of the butterflies changed to being mostly blue because birds came in that attacked the green and red butterflies.

• The color of the butterflies stayed as mostly green because birds came in that attacked the blue and red butterflies.

• The color of the butterflies changed to yellow.

• The color of the butterflies changed to being mostly red because birds came in that attacked the blue butterflies and so red became the successful trait.

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What would happen if a bird with a long, thin beak tried to live on an island that had few insects and had plants with thick, hard seeds?

• The bird would thrive in its environment.

• The bird would struggle to meet the challenges of life.

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Explain how the process of speciation can lead to the development of new species.

• As time passes, each population became isolated from the other populations. After a long period of time, organisms on one island could no longer successfully mate with those of other islands.

• One population of organisms develops different behaviors or mating rituals and no longer recognizes its species.

• A population of organisms are able to interbreed, but the offspring are always sterile.

• Speciation does not lead to the development of new species.

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