Neco Biology Past Questions and Answers

Question 216:

• NECO 2004

Which of these is NOT a method of improving crop yield?

A. Spraying the crops with chemicals
B. Mechanized farming
C. Sowing pest resistant varieties of seeds
D. Storing the crops in barns or silos
E. Sowing of viable seeds

Question 217:

• NECO 2004

Simple sugars are also called ____________

A. Cellulose
B. Disaccharides
C. Monosaccharides
D. Polysacchaiides
E. Starch

Question 218:

• NECO 2004

Plants that are found in extreme dry conditions are called ____________

A. Epiphytes
B. Hydrophytes
C. Mesophytes
D. Thallophytes
E. Xerophytes

Question 219:

• NECO 2004

Which of the following is NOT a characteristic of digestive enzymes?

A. Changes in pH affect enzymes
B. Enzymes react best at high temperature
C. Enzymes react reversibly
D. They are affected by intake of poisons
E. They are protein in nature

Question 220:

• NECO 2004

Which of the following is released from car exhaust due to incomplete combustion of fuel?

A. Carbon dioxide
B. Carbon monoxide
C. Nitrogen dioxide
D. Oxygen
E. Sulphur dioxide