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WAEC Biology questions: Ecology

33 questions with answers and explanations. Tap an option to check yourself.

AllJAMBWAEC
All topicsCell structure and organisation · 26Cellular activities · 24Co-ordination and control · 27Ecology · 33Evolution · 18Excretion · 22Growth · 18Heredity and variation · 24Nutrition · 30Reproduction · 29Respiration · 25Support and movement · 22Transport · 27Variety of organisms · 28

  1. Question 1· Ecology· WAEC

    Desert plants such as cacti reduce water loss by having

    Explanation and discussion

  2. Question 2· Ecology· WAEC

    An animal that feeds on both plants and animals is

    Explanation and discussion

  3. Question 3· Ecology· WAEC

    Which of these is an abiotic factor?

    Explanation and discussion

  4. Question 4· Ecology· WAEC

    Nitrogen-fixing bacteria in root nodules of legumes have a relationship with the plant called

    Explanation and discussion

  5. Question 5· Ecology· WAEC

    Organisms that make their own food are called

    Explanation and discussion

  6. Question 6· Ecology· WAEC

    Decomposers in an ecosystem are mainly

    Explanation and discussion

  7. Question 7· Ecology· WAEC

    Which biome has tall trees with buttress roots, heavy rain all year and several canopy layers?

    Explanation and discussion

  8. Question 8· Ecology· WAEC

    In the food chain maize → rat → snake → eagle, the snake is a

    Explanation and discussion

  9. Question 9· Ecology· WAEC

    A pyramid of energy can never be inverted because

    Explanation and discussion

  10. Question 10· Ecology· WAEC

    Organisms that break down dead matter and return nutrients to the soil are

    Explanation and discussion

  11. Question 11· Ecology· WAEC

    All the living and non-living things interacting in an area form

    Explanation and discussion

  12. Question 12· Ecology· WAEC

    An association between two organisms in which both benefit is

    Explanation and discussion

  13. Question 13· Ecology· WAEC

    The relationship between nitrogen-fixing bacteria in root nodules and a leguminous plant is

    Explanation and discussion

  14. Question 14· Ecology· WAEC

    Nitrifying bacteria convert

    Explanation and discussion

  15. Question 15· Ecology· WAEC

    Which of the following is an abiotic factor in a habitat?

    Explanation and discussion

  16. Question 16· Ecology· WAEC

    Which of these is a biotic factor?

    Explanation and discussion

  17. Question 17· Ecology· WAEC

    The total number of organisms of one species living in a habitat is its

    Explanation and discussion

  18. Question 18· Ecology· WAEC

    The instrument used to measure relative humidity is the

    Explanation and discussion

  19. Question 19· Ecology· WAEC

    A quadrat is used to estimate

    Explanation and discussion

  20. Question 20· Ecology· WAEC

    A food chain always begins with a

    Explanation and discussion

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