Waec Biology Past Questions and Answers

Question 1506:

• WAEC 2013

The following organisms are pests of plants except

A. Birds
B. Nematodes
C. Bacteria
D. Rodents

Question 1507:

• WAEC 2013

The absence of alimentary canal in the parasitic flatworm can be attributed to the fact that

A. Its body does not feed
B. It has no enzymes
C. Its body absorbs digested food
D. It has suckers on the scolex

Question 1508:

• WAEC 2013

Which of the following human activities would help prevent endangered species from extinction?

A. Uncontrolled killing of species
B. Regular clearing of the forest vegetation
C. Temporary maintenance of species in zoological gardens
D. Regular irrigation of their natural habitats

Question 1509:

• WAEC 2013

Which of the following statements is not a reason for conserving wildlife?

A. Attraction of tourists into the country
B. Serving as a source of food
C. Serving as a source of income
D. Increasing the amount of rainfall

Question 1510:

• WAEC 2013

In genetics, linkages refer to the linking of genes of the

A. Same chromosomes
B. Different chromosomes
C. Same nucleus
D. Different nuclei