Waec Biology Past Questions and Answers

Question 431:

• WAEC 1995

The following structures are adaptation for water conservation except

A. Sunken stomata
B. Scales in animals
C. Lenticels in stems
D. Spines in plants
E. Thick leaves

Question 432:

• WAEC 1995

The following structures are adaptation for water conservation except

A. Sunken stomata
B. Scales in animals
C. Lenticels in stems
D. Spines in plants
E. Thick leaves

Question 433:

• WAEC 1995

Which of the following ecological factors causes food shortage?

A. Low rate of reproduction
B. Emigration
C. Drought
D. Topography
E. Wind direction

Question 434:

• WAEC 1995

Density, mortality rate, birth rate are the factors that affect

A. Population
B. Dominance
C. Cover
D. Habitat
E. Abiotic community

Question 435:

• WAEC 1995

Ultra-filtration process at the Bowman’s capsule is facilitated by

A. The volume of water in the blood
B. The high concentration of urea in the blood of the Bowman’s capsule
C. The differential blood pressure between the glomerulus and the Bowman’s capsule
D. The differential blood volume between the glomerulus and the Bowman’s capsule
E. Heavy weight of the urea, water, glucose and amino acids in the Bowman’s capsule.