Limits to Growth

Gibbons are small apes that live in the trees of southeast Asia. A scientist predicts that at the current rate of deforestation in southeast Asia, the region's carrying capacity for gibbons will decrease by 10 percent every year. The scientist's prediction provides the strongest support for which of these conclusions?

• The gibbon population will decrease by 5 percent every year until reaching a certain minimum size, which it will maintain.

• The gibbon population will decrease by 10 percent every year until reaching a certain minimum size, which it will maintain.

• Gibbons will maintain their current population size as they adapt to new environments.

• Gibbons will eventually become extinct in the wild.

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What is the primary factor that limits the populations of wolves and moose on Isle Royale?

• Abiotic factors

• Density-dependent predation

• Density-independent predation

• Density-dependent predator-prey relationships

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These types of limiting factors operate strongly when the number of organisms per unit area is higher.

• density dependent limiting factors

• density independent limiting factors

• human impacts

• exponential growth

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If a population grows larger than the carrying capacity of its environment, the

• death rate may rise

• birth rate may rise

• death rate must fall

• birth rate must fall

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A team of scientists visits an island in the Caribbean Sea. They find a diverse community of turtles, lizards, birds, and a variety of trees, shrubs, and grasses. No humans live on the island. Several years later, the scientists return to the island. They find a much smaller community, with reduced populations of all of the species they had identified earlier. Some of the animals now appear to be absent from the island. Which is the most likely explanation for the changes that the scientists observed?

• Competition for resources caused all of the island populations to decrease at the same time.

• A disease or parasite affected all of the island populations.

• A natural disaster, such as a hurricane, struck the island.

• Stress from overcrowding affected all of the island populations.

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What is the likely impact, if any, of the growing human population on the availability of land for food production?

• The growing human population will lead to a decrease in the demand for agricultural land

• The growing human population is likely to impact the availability of land for food production by increasing the demand for agricultural land.

• The growing human population will have no impact on the availability of land for food production

• The growing human population will result in surplus land for food production

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NGSS.HS-ESS3-6

If a population for a certain organism is above the carrying capacity of an ecosystem, which of the following is a plausible outcome?

• the population will continue to grow because they will start migrating to other ecosystems

• the population will decline, as there is a limited number of resources in the ecosystem

• the population will decline because there will be an increase in predators

• the population will continue to grow until biotic potential is reached

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Which of the following statements about biotic potential is TRUE?

• Biotic potential varies a great deal by species.

• Biotic potential is only reached when food is limited.

• The biotic potential of a large mammal is high.

• The biotic potential of insects tends to be low.

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Which of the following best describes the concept of 'Limits to Growth'?

• A model predicting indefinite economic and population growth

• A theory suggesting that growth is limited by environmental and resource constraints

• An economic theory that supports unlimited resource consumption

• A hypothesis that human innovation can overcome any environmental limits

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The 'Limits to Growth' model primarily uses which type of data to predict future scenarios?

• Economic data

• Environmental data

• Demographic data

• A combination of economic, environmental, and demographic data