Question 21· Ecology· WAEC
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JAMB and WAEC Biology questions: Ecology
71 questions with answers and explanations. Tap an option to check yourself.
All topicsCell structure and organisation · 56Cellular activities · 56Co-ordination and control · 58Ecology · 71Evolution · 45Excretion · 52Growth · 45Heredity and variation · 60Nutrition · 64Reproduction · 62Respiration · 55Support and movement · 50Transport · 57Variety of organisms · 60
- Explanation and discussion
Question 22· Ecology· WAEC
In the food chain maize → rat → snake → eagle, the snake is a
Explanation and discussionQuestion 23· Ecology· JAMB
A quadrat is used in ecology to
Explanation and discussionQuestion 24· Ecology· JAMB
Ecological succession is
Explanation and discussionQuestion 25· Ecology· WAEC
A pyramid of energy can never be inverted because
Explanation and discussionQuestion 26· Ecology· JAMB
Commensalism is a relationship in which
Explanation and discussionQuestion 27· Ecology· JAMB
The relationship between a remora fish and a shark, in which the remora benefits and the shark is unaffected, is
Explanation and discussionQuestion 28· Ecology· JAMB
An organism that feeds on dead organic matter is a:
Explanation and discussionQuestion 29· Ecology· JAMB
A pyramid of numbers is inverted when
Explanation and discussionQuestion 30· Ecology· JAMB
An edaphic factor is a factor related to the
Explanation and discussionQuestion 31· Ecology· JAMB
A pyramid of numbers may be inverted when
Explanation and discussionQuestion 32· Ecology· WAEC
Organisms that break down dead matter and return nutrients to the soil are
Explanation and discussionQuestion 33· Ecology· WAEC
All the living and non-living things interacting in an area form
Explanation and discussionQuestion 34· Ecology· JAMB
Which of the following is a biotic factor in an ecosystem?
Explanation and discussionQuestion 35· Ecology· WAEC
An association between two organisms in which both benefit is
Explanation and discussionQuestion 36· Ecology· WAEC
The relationship between nitrogen-fixing bacteria in root nodules and a leguminous plant is
Explanation and discussionQuestion 37· Ecology· JAMB
In the food chain grass → grasshopper → frog → snake → hawk, the hawk is at the
Explanation and discussionQuestion 38· Ecology· JAMB
A food web is
Explanation and discussionQuestion 39· Ecology· WAEC
Nitrifying bacteria convert
Explanation and discussionQuestion 40· Ecology· JAMB
The place where an organism lives is its
Explanation and discussion
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