WAEC Biology questions

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

All topics Cell structure and organisation · 26 Cellular activities · 24 Co-ordination and control · 27 Ecology · 33 Evolution · 18 Excretion · 22 Growth · 18 Heredity and variation · 24 Nutrition · 30 Reproduction · 29 Respiration · 25 Support and movement · 22 Transport · 27 Variety of organisms · 28

Question 101· Ecology· WAEC
Which instrument measures relative humidity?
Explanation and discussion
Question 102· Ecology· WAEC
In the food chain grass → grasshopper → lizard → hawk, the secondary consumer is the
Explanation and discussion
Question 103· Ecology· WAEC
Only about 10% of energy passes from one trophic level to the next because
Explanation and discussion
Question 104· Ecology· WAEC
The nitrogen-fixing bacteria found in the root nodules of legumes are
Explanation and discussion
Question 105· Ecology· WAEC
The role of decomposers in an ecosystem is to
Explanation and discussion
Question 106· Ecology· WAEC
An instrument used to measure relative humidity in an ecological study is the
Explanation and discussion
Question 107· Ecology· WAEC
Cattle egrets feed on insects disturbed by grazing cattle, which are not affected. This relationship is
Explanation and discussion
Question 108· Ecology· WAEC
In the food chain grass → goat → man, man occupies the position of
Explanation and discussion
Question 109· Ecology· WAEC
Energy is lost at each step of a food chain mainly as
Explanation and discussion
Question 110· Ecology· WAEC
The relationship between a remora fish and a shark, where one benefits and the other is unaffected, is
Explanation and discussion
Question 111· Evolution· WAEC
Adaptation means that an organism
Explanation and discussion
Question 112· Evolution· WAEC
The idea that organs used often become larger and are passed on to offspring was put forward by
Explanation and discussion
Question 113· Evolution· WAEC
Lamarck's theory of evolution is based on
Explanation and discussion
Question 114· Evolution· WAEC
Darwin's book that set out the theory of natural selection is titled
Explanation and discussion
Question 115· Evolution· WAEC
Comparing the forelimbs of a man, a bat and a whale shows a similar bone pattern. This is evidence from
Explanation and discussion
Question 116· Evolution· WAEC
Homologous structures, such as the forelimbs of a bat and a human, suggest
Explanation and discussion
Question 117· Evolution· WAEC
Darwin observed variation in the beaks of finches on the
Explanation and discussion
Question 118· Evolution· WAEC
According to Darwin's theory, organisms best suited to their environment
Explanation and discussion
Question 119· Evolution· WAEC
Which of these is evidence of evolution?
Explanation and discussion
Question 120· Evolution· WAEC
The wings of a bird and the wings of a housefly are
Explanation and discussion

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

Start a Biology test

WAEC Biology questions

Which instrument measures relative humidity?

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

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

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

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

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

The relationship between a remora fish and a shark, where one benefits and the other is unaffected, is

Adaptation means that an organism

The idea that organs used often become larger and are passed on to offspring was put forward by

Lamarck's theory of evolution is based on

Darwin's book that set out the theory of natural selection is titled

Comparing the forelimbs of a man, a bat and a whale shows a similar bone pattern. This is evidence from

Homologous structures, such as the forelimbs of a bat and a human, suggest

Darwin observed variation in the beaks of finches on the

According to Darwin's theory, organisms best suited to their environment

Which of these is evidence of evolution?

The wings of a bird and the wings of a housefly are