Waec Biology Past Questions and Answers

Question 1546:

• WAEC 2014

In a Biuret test , some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive result?

A. Mercurous nitrate
B. Copper sulphate
C. Sodium carbonate
D. Silver nitrate

Question 1547:

• WAEC 2014

A characteristic feature of plant parasites is the

A. Possession of holdfast
B. Possession of rhizoids
C. Development of hanging roots
D. Development of haustoria

Question 1548:

• WAEC 2014

The part of a leguminous plant where bacteria like Azotobacter can be found is

A. At the nodes of the stem
B. At the internodes
C. In the root nodules
D. In the spongy mesophyll

Question 1549:

• WAEC 2014

The following habitats can be found in West Africa except

A. Mangrove swamp
B. Sahel savanna
C. Savanna grassland
D. Temperate grassland

Question 1550:

• WAEC 2014

The following adaptations are associated with the flight of birds except

A. Reduced body weight
B. Streamlined shape
C. Presence of powerful muscles
D. Clawed digits