Exam 52: An Introduction to Ecology and the Biosphere

The diagram shows a generalized cross section of the marine environment with various zones labelled with letters. Choose the letter that best answers the question. Letters may be used once, more than once, or not at all. -Which zone has a condition of constant temperature?

The diagram shows a generalized cross section of the marine environment with various zones labelled with letters. Choose the letter that best answers the question. Letters may be used once, more than once, or not at all. -Which zone is comprised largely of detritus-feeding organisms?

Which of the following abiotic factors has the greatest influence on the metabolic rates of plants and animals?

Which of the following is responsible for the differences in summer and winter temperature stratification of deep temperate zone lakes?

Which of the following are important biotic factors that can affect the structure and organization of biological communities?

Coral reefs can be found on the southern east coast of the United States but not at similar latitudes on the southern west coast. Differences in which of the following most likely account for this?

Which of the examples below provides appropriate abiotic and biotic factors that might determine the distribution of the species in question?

The eight climographs below show yearly temperature (line graph and left vertical axis) and precipitation (bar graph and right vertical axis) averages for each month for some locations on Earth. Choose the climograph that best answers the questions or completes the statement. Climographs may be used once, more than once, or not at all. -Which climograph shows the climate for location 5?

Which of the following might be an investigation of microclimate?

The eight climographs below show yearly temperature (line graph and left vertical axis) and precipitation (bar graph and right vertical axis) averages for each month for some locations on Earth. Choose the climograph that best answers the questions or completes the statement. Climographs may be used once, more than once, or not at all. -Which of the following best substantiates why location 3 is an equatorial (tropical)climate?

As climate changes because of global warming, species' ranges in the northern hemisphere may move northward, using effective reproductive adaptations to disperse their seeds. The trees that are most likely to avoid extinction in such an environment are those that

Which of the following statements about the ocean pelagic biome is true?

In the pelagic zone of oceans, which abiotic factors would reduce or limit productivity to the greatest extent?

Turnover of water in temperate lakes during the spring and fall is made possible by which of the following?

A rain shadow is

A certain species of pine tree survives only in scattered locations at elevations above 2800 m in the western United States. To understand why this tree grows only in these specific places, an ecologist should

Use the following diagram from the text showing the spread of the cattle egret, Bubulcus ibis, since its arrival in the New World, to answer the question below. -How would an ecologist likely explain the expansion of the cattle egret?

Use this description to answer the following question. In areas of permafrost, stands of black spruce are frequently observed in the landscape, while other tree species are noticeably absent. Often these stands are referred to as "drunken forests" because many of the black spruce are displaced from their normal vertical alignment. -When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes

Use this description to answer the following question. In areas of permafrost, stands of black spruce are frequently observed in the landscape, while other tree species are noticeably absent. Often these stands are referred to as "drunken forests" because many of the black spruce are displaced from their normal vertical alignment. -What might be the adaptive significance of these unusual forests growing the way they do in this marginal habitat?

Species introduced by humans to new geographic locations