JAMB Biology questions

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

All topics Cell structure and organisation · 30 Cellular activities · 32 Co-ordination and control · 31 Ecology · 38 Evolution · 27 Excretion · 30 Growth · 27 Heredity and variation · 36 Nutrition · 34 Reproduction · 33 Respiration · 30 Support and movement · 28 Transport · 30 Variety of organisms · 32

Question 121· Ecology· JAMB
Carbon returns to the atmosphere mainly through
Explanation and discussion
Question 122· Ecology· JAMB
200 plants of a species are counted in an area of 50 m². Find the population density.
Explanation and discussion
Question 123· Ecology· JAMB
A major effect of deforestation is
Explanation and discussion
Question 124· Ecology· JAMB
Which Nigerian biome has the greatest variety of species?
Explanation and discussion
Question 125· Ecology· JAMB
Nitrogen-fixing bacteria are found in the root nodules of
Explanation and discussion
Question 126· Ecology· JAMB
An organism's niche is
Explanation and discussion
Question 127· Ecology· JAMB
In the carbon cycle, carbon(IV) oxide is removed from the atmosphere by
Explanation and discussion
Question 128· Ecology· JAMB
In the food chain phytoplankton → small fish → large fish → man, which organism is at the third trophic level?
Explanation and discussion
Question 129· Ecology· JAMB
The first organisms to colonise bare rock during ecological succession are usually
Explanation and discussion
Question 130· Ecology· JAMB
Only about 10% of the energy at one trophic level passes to the next because most of it is
Explanation and discussion
Question 131· Ecology· JAMB
Several food chains linked together in an ecosystem make up a
Explanation and discussion
Question 132· Evolution· JAMB
The similarity of the early embryos of fish, chicks and humans is evidence for evolution from
Explanation and discussion
Question 133· Evolution· JAMB
The forelimbs of a man, a bat and a whale are similar in basic structure but used differently. They are examples of
Explanation and discussion
Question 134· Evolution· JAMB
Which of the following is a vestigial organ in humans?
Explanation and discussion
Question 135· Evolution· JAMB
Which of the following combinations is most likely to lead to natural selection?
Explanation and discussion
Question 136· Evolution· JAMB
Fossils are most likely to form when a dead organism is
Explanation and discussion
Question 137· Evolution· JAMB
The human appendix is an example of
Explanation and discussion
Question 138· Evolution· JAMB
A mutation is
Explanation and discussion
Question 139· Evolution· JAMB
A chameleon changing its colour to match its surroundings shows
Explanation and discussion
Question 140· Evolution· JAMB
Analogous structures, such as the wings of birds and insects, arise through
Explanation and discussion

Practise Biology like the real exam. A timed CBT, your score, and the topics to fix.

Start a Biology test

JAMB Biology questions

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

Which Nigerian biome has the greatest variety of species?

Nitrogen-fixing bacteria are found in the root nodules of

An organism's niche is

In the carbon cycle, carbon(IV) oxide is removed from the atmosphere by

In the food chain phytoplankton → small fish → large fish → man, which organism is at the third trophic level?

The first organisms to colonise bare rock during ecological succession are usually

Only about 10% of the energy at one trophic level passes to the next because most of it is

Several food chains linked together in an ecosystem make up a

The similarity of the early embryos of fish, chicks and humans is evidence for evolution from

The forelimbs of a man, a bat and a whale are similar in basic structure but used differently. They are examples of

Which of the following is a vestigial organ in humans?

Which of the following combinations is most likely to lead to natural selection?

Fossils are most likely to form when a dead organism is

The human appendix is an example of

A mutation is

A chameleon changing its colour to match its surroundings shows

Analogous structures, such as the wings of birds and insects, arise through