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Study Guide for AP Biology ECOLOGY Exam

  1. Describe how each of the following are related to each other: Organism, Community, Ecosystem, and Population.
  1. 55.5 For the following graph, describe what a population found at each point would experiencing:

(A)

(B)

(C)

(D)

(E)

  1. (54.3) Describe an example for each of the forms of learning

a. habituation

b. imprinting (and critical/sensitive period)

c. instinct

d. operant conditioning

e. classical conditioning

  1. How much carbon (in g/m2) is released into the atmosphere as a result of the metabolic activity of herbivores? Give your answer to the nearest whole number.
  1. 57.1 Using the following graph, give an explanation for the trend in both the solid and dashed lines including peaks and drops.

  1. 56.2 How is the competitive exclusion principle demonstrated in the paramecium experiment?
  1. The following is a food web for a meadow habitat that occupies 25.6 km2. The primary producers’ biomass is uniformly distributed throughout the habitat and totals 1,500 kg/km2.

Developers have approved a project that will permanently reduce the primary producers’ biomass by 50 percent and remove all rabbits and deer. What changes in the populations is expected as a result at the completion of the project?

  1. 55.6 Describe the interaction that occurs between the North American snowshoe hare and the Canada Lynx as demonstrated in figure 55.24
  1. 56.3 Describe how plants use chemical defenses against herbivores? How do monarchs take advantage of these chemical defenses? And how do nonpoisonous species of butterflies take advantage of the monarch defense system?
  1. 57.1 Referring to the nitrogen cycle, which organisms convert gaseous nitrogen (name the form) to nitrogen-containing compounds (name the compounds) that are useful to plants? What is the process that does the reverse of this?

  1. 55.6 Give an example of how density dependent factors can regulate a population of microscopic organisms growing in a large flask that had the growth patterns in period 1 & period 2 as shown:
  1. The diagram above shows the progression of ecological events after fire in a particular ecosystem. Based on the diagram, what might be the reason the oak trees are later replaced by other trees?

  1. 57.2 Refer to the following image and place the organisms into an energy pyramids. What is the nameof each tropic level? What unites all levels?
  1. 55.7 Describe the difference between the following:

K strategy organisms / r strategy organisms
  1. 55.7 Refer to the following:

    a. How are the age structures expected to change over 15 years in either country?

b. Describe the age groups 0-14; 15-30; 31-54; 55-79, males & females

  1. 56.4 Describe each symbiotic relationship (give and example)
    a. commensalism

b. predation

c. parasitism

d. mutualism

e. competition

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