Waec Biology Past Questions and Answers

Question 1766:

• WAEC 2018

Which of the following statements would be a correct observation at the end of the experiment? Water moves

A. Highest in sandy soil
B. Lowest in loamy soil
C. To the same level in all soil types
D. Highest in clayey soil

Question 1767:

• WAEC 2018

The most important factor(s) that influence(s) the ecological niche of an organism is/ are the

A. Water, light and predator-prey relationship
B. Food and water availability
C. Physical environment
D. Competition for food and space

Question 1768:

• WAEC 2018

The diagram above is an illustration of organisms in an air-tight aquarium.The most important factor needed by the organisms is

A. Light energy
B. Low humidity
C. Oxygen
D. Nitrate

Question 1769:

• WAEC 2018

Which of the following instruments is used to determine the turbidity of water?

A. Hygrometer
B. Hydrometer
C. Secchi disc
D. Rain gauge

Question 1770:

• WAEC 2018

In an ecosystem, the least efficient energy transfer link is from the

A. Secondary consumers to decomposers
B. Sun to producers
C. Primary consumers to secondary consumers
D. Producer to primary consumers