Biology 2004 Waec Past Questions and Answers

Question 16 :

• WAEC 2004

Green plants lose water to the atmosphere through the process of

A. Respiration
B. Photosynthesis
C. Transpiration
D. Translocation

Question 17 :

• WAEC 2004

The body temperature of a mammal has to be maintained at a fairly constant level because

A. Excessive heat is continually lost by the body to the environment
B. Their body temperature is always higher than that of the environment
C. Evaporation of sweat cools the body
D. Metabolic activities function best at certain temperature

Question 18 :

• WAEC 2004

A urine sample of a patient, tested with Benedict/Fehling solution, gave an orange colored precipitate,
indicating the presence of

A. Glucose
B. Sucrose
C. Lactose
D. Maltose

Question 19 :

• WAEC 2004

Which hormonal deficiency is likely to cause an accumulation of reducing sugar in the urine?

A. Thyroxine
B. Insulin
C. Secretin
D. Testosterone

Question 20 :

• WAEC 2004

Which of the following structures occupies the neural canal of the vertebral column?

A. Cerebellum
B. Hypothalamus
C. Medulla oblongata
D. Spinal cord