Waec Biology 2019 Past Questions and Answers

Question 41:

• WAEC 2019

The part labelled I is the ____________

A. Centromere
B. Spindle fibre
C. Centriole
D. Chiasmata

Question 42:

• WAEC 2019

The rate of diffusion of molecules between two media will be higher if ____________

A. The difference in concentration of the two media is low
B. The difference in concentration of the two media is negligible
C. The difference in concentration of the two media is high
D. There is no difference in the concentration of the two media

Question 43:

• WAEC 2019

Anaerobic respiration in the organism illustrated in the diagram above produces carbon dioxide and ____________

A. Ethanol
B. Water
C. Oxygen
D. Glucose

Question 44:

• WAEC 2019

Underground storage stems which grow horizontally in the soil are ____________

A. Bulbs
B. Runners
C. Rhizomes
D. Corms

Question 45:

• WAEC 2019

Muscle fatigue in the body of an athlete is due to _____________

A. Low pH
B. High oxygen content
C. Accumulation of lactic acid
D. Accumulation of carbonic acid