Waec Biology 2005 Past Questions and Answers

Question 46:

• WAEC 2005

Which of the following infections is unlikely to respond to antibiotic treatment?

A. Typhoid fever
B. Ring worm
C. Measles
D. Tetanus

Question 47:

• WAEC 2005

Algal bloom depletes oxygen content of bodies of water polluted by

A. Industrial effluents
B. Thermal plant discharge
C. Raw sewage disposal
D. Crude oil spillage

Question 48:

• WAEC 2005

Conservation of wild life is necessary mainly because

A. Wild species cannot resist disease better than their domesticated species
B. Many predator wild animals help in control of pests
C. Many people derive pleasure from observing wild animals
D. It helps to prevent extinction of species

Question 49:

• WAEC 2005

Which of the following is not a means of conservation?

A. Controlling excessive deforestation
B. Prevention of poaching
C. Replacing harvested mature trees with seedlings
D. Burning of vegetation before cropping

Question 50:

• WAEC 2005

Which of the following statements about mutation is true?

A. The genotype is not affected
B. The genotype is affected
C. The phenotype is not affected
D. It cannot be induced by artificial means