JAMB and WAEC Biology questions: Ecology

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

All topics Cell structure and organisation · 56 Cellular activities · 56 Co-ordination and control · 58 Ecology · 71 Evolution · 45 Excretion · 52 Growth · 45 Heredity and variation · 60 Nutrition · 64 Reproduction · 62 Respiration · 55 Support and movement · 50 Transport · 57 Variety of organisms · 60

Question 1· Ecology· JAMB
In the food web shown, which organism feeds at more than one trophic level?
Explanation and discussion
Question 2· Ecology· WAEC
Desert plants such as cacti reduce water loss by having
Explanation and discussion
Question 3· Ecology· JAMB
The relationship in which one organism benefits and the other is harmed is:
Explanation and discussion
Question 4· Ecology· JAMB
Saprophytes obtain food from
Explanation and discussion
Question 5· Ecology· JAMB
Decomposers are important in an ecosystem because they
Explanation and discussion
Question 6· Ecology· JAMB
The climax community is
Explanation and discussion
Question 7· Ecology· WAEC
An animal that feeds on both plants and animals is
Explanation and discussion
Question 8· Ecology· JAMB
In the food web shown, if all the frogs were removed, the number of grasshoppers would most likely
Explanation and discussion
Question 9· Ecology· JAMB
Which organisms are the pioneers on bare rock?
Explanation and discussion
Question 10· Ecology· JAMB
A group of organisms of the same species living in the same habitat is a
Explanation and discussion
Question 11· Ecology· JAMB
In a predator–prey relationship, the population peak of the predator usually
Explanation and discussion
Question 12· Ecology· JAMB
The association between nitrogen-fixing bacteria and leguminous plants is an example of
Explanation and discussion
Question 13· Ecology· JAMB
In a food chain grass → grasshopper → lizard → hawk, the lizard is a:
Explanation and discussion
Question 14· Ecology· WAEC
Which of these is an abiotic factor?
Explanation and discussion
Question 15· Ecology· JAMB
The final, stable community at the end of an ecological succession is the
Explanation and discussion
Question 16· Ecology· JAMB
Relative humidity is measured with a
Explanation and discussion
Question 17· Ecology· JAMB
Nitrification is the conversion of
Explanation and discussion
Question 18· Ecology· WAEC
Nitrogen-fixing bacteria in root nodules of legumes have a relationship with the plant called
Explanation and discussion
Question 19· Ecology· WAEC
Organisms that make their own food are called
Explanation and discussion
Question 20· Ecology· WAEC
Decomposers in an ecosystem are mainly
Explanation and discussion

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JAMB and WAEC Biology questions: Ecology

In the food web shown, which organism feeds at more than one trophic level?

Desert plants such as cacti reduce water loss by having

The relationship in which one organism benefits and the other is harmed is:

Saprophytes obtain food from

Decomposers are important in an ecosystem because they

The climax community is

An animal that feeds on both plants and animals is

In the food web shown, if all the frogs were removed, the number of grasshoppers would most likely

Which organisms are the pioneers on bare rock?

A group of organisms of the same species living in the same habitat is a

In a predator–prey relationship, the population peak of the predator usually

The association between nitrogen-fixing bacteria and leguminous plants is an example of

In a food chain grass → grasshopper → lizard → hawk, the lizard is a:

Which of these is an abiotic factor?

The final, stable community at the end of an ecological succession is the

Relative humidity is measured with a

Nitrification is the conversion of

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

Organisms that make their own food are called

Decomposers in an ecosystem are mainly