Wildlife Wonders/Spongers of the Sea

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What does the word "verified" mean in paragraph 5?

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proved

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What is the best summary of the article? Options: Koalas are furry mammals that can be found in Australia. Over the years scientists have learned a great deal about these tree-dwelling animals. For example, scientists know that koalas eat eucalyptus leaves and hug trees. , Scientists wondered why koalas grasp the lower trunks of eucalyptus trees when the temperature rises. By using technology to study koalas, scientists discovered that doing so allowed the koalas to conserve the water in their bodies. , Scientists used technology to observe koalas that hug trees. The scientists located the amials with radio tags, took photographs of them, and measured their temperatures. , It is difficult for koalas to live in hot environments because they cannot sweat. They can lick themselves or pant, but these methods can cause them to become dehydrated.

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Scientists wondered why koalas grasp the lower trunks of eucalyptus trees when the temperature rises. By using technology to study koalas, scientists discovered that doing so allowed the koalas to conserve the water in their bodies.

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Which idea is supported by information found throughout the article? Options: Koalas can dehydrate while trying to stay cool., Studying koalas requires special equipment., Searching for water is a dangerous activity for koalas., Changes in temperature affect the behavior of koalas.

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Changes in temperature affect the behavior of koalas.

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Based on information in paragraph 4, why does the tree trunk appear dark in the thermal image?

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To represent its cooler temperature

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How do the bottom-dwelling fish in Shark Bay cause a problem for the dolphins?

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The fish do not have a certain body part that allows the dolphins to locate them.

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The author wrote the selection most likely to---

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describe how dolphins use sponges as tools

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According to the selection, how do fish protect themselves from dolphins?

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They bury themselves beneath the sand along the sea floor.

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Which idea from the selection is illustrated by the photograph?

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Shark Bay dolphins fit sponges over their rostrums before searching for fish.

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BOTH authors focus their selections on animal behaviors that--

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are important to an animal's survival

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Which conclusion is best supported by BOTH selections? Options: Studying animals helps researchers learn why animals do what they do., Animals often act in ways that cannot be explained., The senses of animals are better developed than those of humans., Hot weather affects an animal's food supply and comfort.

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Studying animals helps researchers learn why animals do what they do.