AP Biology Released Exam

What is Ecology?

• The study of Earth's Mantle

• The study of relationships between living things and their environment

• The study of humans and their impact on Earth

• The study of plants

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What are organisms of the same species living in the same environment together called?

• Population

• Community

• Ecosystem

• Environment

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Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture. How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

• by increasing carbon dioxide and decreasing oxygen

• by increasing carbon dioxide and increasing oxygen

• by decreasing carbon dioxide and increasing oxygen

• by decreasing carbon dioxide and decreasing oxygen

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A trout population grew from 4 in 1992 to 16 in 1993 and then to 64 in 1994. If it continued to grow exponentially, approximately how many trout were there in 1995?

• 100

• 128

• 256

• 320

Which determines carrying capacity?

• logistic factors

• exponential growth

• population growth

• limiting factors

Which would have to happen to keep the population growth of cheetahs the same in 2013?

• 4 deaths, 7 births, 2 immigration, 6 emigration

• 3 deaths, 6 births, 5 immigration, 7 emigration

• 5 deaths, 2 births, 8 immigration, 3 emigration

• 1 deaths, 5 births, 3 immigration, 7 emigration

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Which of the following is a limiting factor for a ground squirrel population?

• a population of tree squirrels

• a population of hawks

• genetic variability

• breeding season

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The Serengeti plains are part of the African savanna ecosystem and are home to a variety of different species of plants and animals. The Serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. Which type of limiting factors does the seasonal drought in the Serengeti plains affect?

• density-independent factors

• density-dependent factors

• population-dependent factors

• population-independent factors

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An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?

• Shrubs

• lichen

• small annual plants

• pine and oak trees

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Which would be the most accurate title for this picture?

• primary succession after a controlled fire

• primary succession after a volcanic eruption

• secondary succession after a controlled fire

• secondary succession after a volcanic eruption

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