Year : 
2006
Title : 
Biology
Exam : 
WASSCE/WAEC MAY/JUNE

Paper 1 | Objectives

41 - 50 of 64 Questions

# Question Ans
41.

The physical and chemical factors which affect the life of organisms in an environment are described as

A. biotic

B. edaphic

C. abiotic

D. physiographic

C

42.

Which of these factors are common to both aquatic and terrestrial habitats?

A. Light, rainfall and turbidity

B. Light, temperature and tide

C. Light, rainfall and temperature

D. Rainfall, turbidity and salinity

C

43.

Organisms that feed essentially on plants within any ecosystem may be referred to as

A. carnivores

B. herbivores

C. saprophytes

D. omnivores

B

44.

Which of the following statements about feeding relationships is correct?

A. In a food web on land, grasshopper feeds on praying mantis and on predator bugs

B. In a food chain on land, green plant is the producer

C. In an aquatic food chain mollusc larvae are the producers

D. In an aquatic food web, various copepods feed on mollusk Larvae and on sand eel

B

45.

Which of these diseases cannot be spread by an insect?

A. Cholera

B. Malaria

C. Trypanosomiasis

D. Measles

D

46.

Air pollution can be reduced by the following methods except

A. building tall factory chimneys

B. passing waste gases through filters and absorbers

C. using lead-free petrol in car

D. recycling tins, cans and bottles

D

47.

An effective management of natural resources to ensure their continued yield from generation to generation may involve all the following except

A. protection of wildlife

B. prevention of habitat destruction

C. biological control of pests

D. disposal of raw sewage into the sea

D

48.

Which of the following orders correctly represents the trend in eutrophication?

A. Lack of oxygen → Death of aquatic organisms → Massive algal growth

B. Excess nitrates and phosphates → Massive algal growth → Lack of oxygen → Death of aquatic organisms

C. Heavy mineralization → Lack of oxygen → Massive algal growth

D. Excess nitrates and phosphates → Lack of oxygen → Massive algal growth → Death of aquatic organisms

B

49.

The following practices can contribute towards the conservation of natural resources except

A. afforestation

B. deforestation

C. contour ploughing

D. establishment of Game Reserves

B

50.

Variation is a factor which

A. differentiates between individuals of the same species

B. qualifies an organism to live with others

C. enables organisms to adapt to the environment

D. states the external features of an organism

A

41.

The physical and chemical factors which affect the life of organisms in an environment are described as

A. biotic

B. edaphic

C. abiotic

D. physiographic

C

42.

Which of these factors are common to both aquatic and terrestrial habitats?

A. Light, rainfall and turbidity

B. Light, temperature and tide

C. Light, rainfall and temperature

D. Rainfall, turbidity and salinity

C

43.

Organisms that feed essentially on plants within any ecosystem may be referred to as

A. carnivores

B. herbivores

C. saprophytes

D. omnivores

B

44.

Which of the following statements about feeding relationships is correct?

A. In a food web on land, grasshopper feeds on praying mantis and on predator bugs

B. In a food chain on land, green plant is the producer

C. In an aquatic food chain mollusc larvae are the producers

D. In an aquatic food web, various copepods feed on mollusk Larvae and on sand eel

B

45.

Which of these diseases cannot be spread by an insect?

A. Cholera

B. Malaria

C. Trypanosomiasis

D. Measles

D

46.

Air pollution can be reduced by the following methods except

A. building tall factory chimneys

B. passing waste gases through filters and absorbers

C. using lead-free petrol in car

D. recycling tins, cans and bottles

D

47.

An effective management of natural resources to ensure their continued yield from generation to generation may involve all the following except

A. protection of wildlife

B. prevention of habitat destruction

C. biological control of pests

D. disposal of raw sewage into the sea

D

48.

Which of the following orders correctly represents the trend in eutrophication?

A. Lack of oxygen → Death of aquatic organisms → Massive algal growth

B. Excess nitrates and phosphates → Massive algal growth → Lack of oxygen → Death of aquatic organisms

C. Heavy mineralization → Lack of oxygen → Massive algal growth

D. Excess nitrates and phosphates → Lack of oxygen → Massive algal growth → Death of aquatic organisms

B

49.

The following practices can contribute towards the conservation of natural resources except

A. afforestation

B. deforestation

C. contour ploughing

D. establishment of Game Reserves

B

50.

Variation is a factor which

A. differentiates between individuals of the same species

B. qualifies an organism to live with others

C. enables organisms to adapt to the environment

D. states the external features of an organism

A