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Effect of Nutrient Addition on Herbivore Performance Quiz

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Effect of Nutrient Addition on Herbivore Performance Quiz

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Questions and Answers

Why did the exotic gall-forming wasps from Asia attack the native coral trees in Hawaii?

Due to the high nitrogen content in the native coral trees. (correct)

Because they were introduced to Hawaii from Asia.

To create characteristic galls on the leaves for reproduction.

To eliminate the cane and screwpine species present in Hawaii.

What factor largely influences herbivores to select plants and plant tissues with high nitrogen content?

The elemental proportions of nitrogen in plants and animals. (correct)

The availability of sugar in plant tissues.

The color of the plant leaves.

The level of carbon dioxide in the atmosphere.

How does animal tissue compare to plant tissue in terms of nitrogen content?

Plant tissue contains no nitrogen.

Plant tissue contains about 10 times more nitrogen than animal tissue.

Animal tissue contains no nitrogen.

Animal tissue contains about 10 times more nitrogen than plant tissue. (correct)

What are the potential effects of nutrient addition on insect herbivores?

Increased herbivore populations due to better plant growth. Signup and view all the answers

Why did goats introduced to Santa Catalina Island drive the local population of California sagebrush to extinction?

Because goats preferred consuming California sagebrush over other plants. Signup and view all the answers

What happened within a year after the exotic gall-forming wasps from Asia appeared in Hawaii?

They spread to every island, attacking native trees. Signup and view all the answers

What have Indian elephants introduced to the Andaman Islands eliminated except in specific areas?

Cane and screwpine species. Signup and view all the answers

In what type of areas did cane and screwpine species manage to survive despite the presence of Indian elephants?

Steep and rocky slopes. Signup and view all the answers

How did the exotic gall-forming wasps affect Hawaii's coral trees?

Created characteristic galls on their leaves, killing and disfiguring them. Signup and view all the answers

What is one reason why herbivores favor plants with high nitrogen content?

High-nitrogen plants provide more energy to herbivores. Signup and view all the answers