JAMB and WAEC Biology questions

791 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 201· Ecology· JAMB
A pyramid of numbers may be inverted when
Explanation and discussion
Question 202· Ecology· WAEC
Organisms that break down dead matter and return nutrients to the soil are
Explanation and discussion
Question 203· Ecology· WAEC
All the living and non-living things interacting in an area form
Explanation and discussion
Question 204· Ecology· JAMB
Which of the following is a biotic factor in an ecosystem?
Explanation and discussion
Question 205· Ecology· WAEC
An association between two organisms in which both benefit is
Explanation and discussion
Question 206· Ecology· WAEC
The relationship between nitrogen-fixing bacteria in root nodules and a leguminous plant is
Explanation and discussion
Question 207· Ecology· JAMB
In the food chain grass → grasshopper → frog → snake → hawk, the hawk is at the
Explanation and discussion
Question 208· Ecology· JAMB
A food web is
Explanation and discussion
Question 209· Ecology· WAEC
Nitrifying bacteria convert
Explanation and discussion
Question 210· Ecology· JAMB
The place where an organism lives is its
Explanation and discussion
Question 211· Ecology· JAMB
An anemometer is used to measure
Explanation and discussion
Question 212· Ecology· WAEC
Which of the following is an abiotic factor in a habitat?
Explanation and discussion
Question 213· Ecology· WAEC
Which of these is a biotic factor?
Explanation and discussion
Question 214· Ecology· WAEC
The total number of organisms of one species living in a habitat is its
Explanation and discussion
Question 215· Ecology· WAEC
The instrument used to measure relative humidity is the
Explanation and discussion
Question 216· Ecology· JAMB
Carbon returns to the atmosphere mainly through
Explanation and discussion
Question 217· Ecology· JAMB
200 plants of a species are counted in an area of 50 m². Find the population density.
Explanation and discussion
Question 218· Ecology· JAMB
A major effect of deforestation is
Explanation and discussion
Question 219· Ecology· WAEC
A quadrat is used to estimate
Explanation and discussion
Question 220· Ecology· JAMB
Which Nigerian biome has the greatest variety of species?
Explanation and discussion

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JAMB and WAEC Biology questions

A pyramid of numbers may be inverted when

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

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

Which of the following is a biotic factor in an ecosystem?

An association between two organisms in which both benefit is

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

In the food chain grass → grasshopper → frog → snake → hawk, the hawk is at the

A food web is

Nitrifying bacteria convert

The place where an organism lives is its

An anemometer is used to measure

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

Which of these is a biotic factor?

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

The instrument used to measure relative humidity is the

Carbon returns to the atmosphere mainly through

200 plants of a species are counted in an area of 50 m². Find the population density.

A major effect of deforestation is

A quadrat is used to estimate

Which Nigerian biome has the greatest variety of species?