2013 - WAEC Biology Past Questions and Answers - page 4

The frog is considered a better swimmer than the toad because it

The bacteria that reduce nitrates in the soil into gaseous nitrogen are referred to as

A pyramid of numbers is constructed by

The main reason for immunizing children is to

Rhizobium which lives in the root nodules of leguminous plants is an example of the association known as

Ascaris lumbricoides is a parasitic

The following organisms are pests of plants except

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

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

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