AP Biology: Ecology

The increase in CO2 concentration between 1970 and 1990 is closest to

25 ppm

The pH at which 50 percent of the Daphnia survive after 2 hours of exposure can be predicted from the data. The pH is closest to

4.5

On the basis of the data, the best prediction of the pH of the water in which Daphnia normally are found in the wild

7.0

For most terrestrial ecosystems, pyramids of numbers, biomass, and energy are essentially the same, exhibiting a broad base and a narrow top. The primary reason for this pattern

At each step, energy is lost from the system as a result of keeping the organisms alive

The land on a 100-acre farm is equally suited.....

Cattle:0 Corn:100

Which of the following is the central concept of the situation described above

Defensive adaptation

Which lettered portion...

E

Which of the following conclusions is supported by the data

Habitat fragmentation has more effect on seed production than does population density

Living organisms must acquire energy..... example of adaptions that help organisms acquire energy

I and II only

Ramsey Island and Bradey

II only

Which pop is stable

II only

Which population is in the process of decresing

III only

A species of malaria- carrying mosquito lives..... observable consequence

Increased mortality in monkey species B

The chart above compares the daily water use per person to the price of water in selected countries....

Increased water use is generally correlated with lower water prices

All of the following statements about the food web diagram above are correct except

The death of the snake would cause a collapse in the food web

Represents a logical conclusion based on the data...

The population of the prey is greater than that of predator

In a mature forest of oak, maple, and hickory trees, a disease causes a reduction in the number of acorns produced by oak trees. Which of the following would least likely be a direct result of an increase in diseased acorns?

There might be a decrease in the number of maple seeds as the disease spreads to other trees in the forest

Which of the following is more susceptible to damage from some sort of ecological disturbance

a corn field

The nitrogen cycle is shown below

amino acids found in proteins

Traveling southward from the Arctic regions of Canada to the tropics of Panama, one passes through several biomes: tundra, coniferous... This pattern of change in vegetation is primarily the result of?

an increase in both mean annual temperature and mean annual precipitation

The increase in carbon dioxide levels can be attributed to

an increase in the burning of fossil fuels

Which of the factors would best account for the regulation of the population

competition for space after a fire

The banding pattern of viceroy butterflies is an example of

mimicry

A student is asked to design an experiment..... the best way to proceed is to

perform within-population mating with birds from different populations that have migratory habits and....

The conspicuous banding displayed by monarch butterflies is an example of

warning coloration