Waec Biology Past Questions and Answers

Question 1666:

• WAEC 2016

In which of the following insects is group instinct not displayed?

A. Solder ants
B. Cockroaches
C. Honey bees
D. Termites

Question 1667:

• WAEC 2016

The inability of an organism to adapt to its habitat can lead to

A. Dormancy
B. Adaptation
C. Extinction
D. Survival

Question 1668:

• WAEC 2016

Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
The source of the nitrates in the diagram is termed

A. Root nodules of legumes
B. Cloud
C. Fertilizers
D. Organic matter

Question 1669:

• WAEC 2016

Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
The phenomenon in the diagram is termed

A. Denitrification
B. Conservation
C. Eutrophication
D. Global warming

Question 1670:

• WAEC 2016

Use the diagram above that shows the effect of nitrates on water bodies Study it carefully and answer questions.
Another cause that could lead to the phenomenon in the diagram is

A. Exhaust from cars
B. Oil spillage
C. Dumping of sewage
D. Excess rainfall