Neco Biology 2001 Past Questions and Answers

Question 31:

• NECO 2001

Which is the most ecologically viable method of insect pest control?

A. Draining all stagnant pools of water
B. Eliminating one of the development stages of the insect
C. Employing a lot of labourers to physically handpick the insect pests
D. Erecting physical barriers against insect pests
E. Using stronger insecticides which can kill a greater number of insect.

Question 32:

• NECO 2001

Which is NOT an effect of the food shortage on a population?

A. Cannibalism
B. Competition
C. Increase in mortality
D. Increase in natality
E. Migration

Question 33:

• NECO 2001

Which pollutant is likely to cause cholera?

A. Agricultural wastes
B. Industrial wastes
C. Nuclear fallouts
D. Oil spillages
E. Untreated sewage

Question 34:

• NECO 2001

The gradient of land can be measured with an instrument called a/an ____________

A. Aneroid barometer
B. Hygrometer
C. Metre rule
D. Secchi disc
E. Slope gauge

Question 35:

• NECO 2001

What is NOT a reflex action?

A. Blinking of an eye
B. Jerking of the knee
C. Leaning
D. Salivating
E. Sneezing