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 221· Ecology· WAEC
A food chain always begins with a
Explanation and discussion
Question 222· Ecology· WAEC
Bacteria that convert nitrates in the soil to nitrogen gas carry out
Explanation and discussion
Question 223· Ecology· WAEC
The instrument used to measure rainfall is the
Explanation and discussion
Question 224· Ecology· JAMB
Nitrogen-fixing bacteria are found in the root nodules of
Explanation and discussion
Question 225· Ecology· WAEC
Mangrove plants are adapted to waterlogged soils by having
Explanation and discussion
Question 226· Ecology· WAEC
Which instrument measures relative humidity?
Explanation and discussion
Question 227· Ecology· JAMB
An organism's niche is
Explanation and discussion
Question 228· Ecology· WAEC
In the food chain grass → grasshopper → lizard → hawk, the secondary consumer is the
Explanation and discussion
Question 229· Ecology· JAMB
In the carbon cycle, carbon(IV) oxide is removed from the atmosphere by
Explanation and discussion
Question 230· Ecology· WAEC
Only about 10% of energy passes from one trophic level to the next because
Explanation and discussion
Question 231· Ecology· WAEC
The nitrogen-fixing bacteria found in the root nodules of legumes are
Explanation and discussion
Question 232· Ecology· WAEC
The role of decomposers in an ecosystem is to
Explanation and discussion
Question 233· Ecology· JAMB
In the food chain phytoplankton → small fish → large fish → man, which organism is at the third trophic level?
Explanation and discussion
Question 234· Ecology· WAEC
An instrument used to measure relative humidity in an ecological study is the
Explanation and discussion
Question 235· Ecology· WAEC
Cattle egrets feed on insects disturbed by grazing cattle, which are not affected. This relationship is
Explanation and discussion
Question 236· Ecology· JAMB
The first organisms to colonise bare rock during ecological succession are usually
Explanation and discussion
Question 237· 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 238· Ecology· WAEC
In the food chain grass → goat → man, man occupies the position of
Explanation and discussion
Question 239· Ecology· WAEC
Energy is lost at each step of a food chain mainly as
Explanation and discussion
Question 240· Ecology· JAMB
Several food chains linked together in an ecosystem make up a
Explanation and discussion

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JAMB and WAEC Biology questions

A food chain always begins with a

Bacteria that convert nitrates in the soil to nitrogen gas carry out

The instrument used to measure rainfall is the

Nitrogen-fixing bacteria are found in the root nodules of

Mangrove plants are adapted to waterlogged soils by having

Which instrument measures relative humidity?

An organism's niche is

In the food chain grass → grasshopper → lizard → hawk, the secondary consumer is the

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

Only about 10% of energy passes from one trophic level to the next because

The nitrogen-fixing bacteria found in the root nodules of legumes are

The role of decomposers in an ecosystem is to

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

An instrument used to measure relative humidity in an ecological study is the

Cattle egrets feed on insects disturbed by grazing cattle, which are not affected. This relationship is

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

In the food chain grass → goat → man, man occupies the position of

Energy is lost at each step of a food chain mainly as

Several food chains linked together in an ecosystem make up a