Ücretsiz Kullanmaya Başla

Ecological succession Knowledge-Based Practice

Biology · Ecology · Biology · Communities & Interactions

5 Biology practice questions on Ecological succession. Questions that assess core concepts and understanding.

Layout:

Choose how questions appear in the preview and test.

Preview the questions below, then start to answer and see your results.

Questions

  1. 1.

    Which type of ecological succession is driven primarily by changes in the physical environment brought about by the biological activities of the resident organisms themselves?

    • A) Allogenic succession
    • B) Retrogressive succession
    • C) Autogenic succession
    • D) Degradative succession
  2. 2.

    Which physiological or life-history trait is most characteristic of pioneer plant species during the earliest stages of ecological succession?

    • A) High shade tolerance beneath closed canopies
    • B) Production of a small number of heavy, nutrient-rich seeds
    • C) Delayed reproductive maturity and prolonged individual lifespans
    • D) Rapid growth rates and the production of numerous, wind-dispersed seeds
  3. 3.

    In the study of ecological succession, which mechanism occurs when early colonizing species alter environmental conditions in a manner that promotes the establishment and growth of subsequent species?

    • A) Competitive exclusion
    • B) Ecological tolerance
    • C) Mutual inhibition
    • D) Ecological facilitation
  4. 4.

    As an ecological community progresses from early successional stages toward a mature climax community, which of the following general trends is typically observed?

    • A) Total community biomass increases as trophic interactions become increasingly complex.
    • B) Soil organic matter content and nutrient retention capacity steadily decline.
    • C) Dominant organisms transition from competitive K-selected species to opportunistic r-selected species.
    • D) Species richness decreases continuously as pioneer organisms are eliminated from the habitat.
  5. 5.

    Which of the following ecological events occurs during primary succession but is typically absent at the onset of secondary succession?

    • A) Germination of dormant seeds stored in an intact underground seed bank
    • B) Weathering of exposed mineral substrate and initial soil formation facilitated by pioneer species
    • C) Gradual replacement of fast-growing shrubs by shade-tolerant canopy trees
    • D) Rapid recolonization of an open area by opportunistic herbaceous weeds

Answers and step-by-step solutions appear after you finish the test.