Waec Biology Past Questions and Answers

Question 571:

• WAEC 1999

One of the similarities between algae and mosses is their possession of

A. Chlorophyll
B. Stem
C. Leaves
D. Roots

Question 572:

• WAEC 1999

The vessel that carries blood from the heart to the lungs is called an artery because it

A. Contains oxygenated blood
B. Contains more blood than the other vessels
C. Carries blood away from the heart
D. Has thick inelastic wall

Question 573:

• WAEC 1999

During anaerobic respiration in skeletal muscles, pyruvic acid is

A. Reduced to lactic acid
B. Oxidized to ethanol
C. Oxidized to lactic acid
D. Reduced to water

Question 574:

• WAEC 1999

Use the information on the stages involved in conjugation to answer the 2 questions below

I. Transfer of one cell content into the adjacent cell ll. Formation of a conjugation tube III. Secretion of thick
wall to form a zygospore IV. Formation of a protuberance V. Germination of a filament


Which of the following organisms exhibits 'the stages listed above during conjugation?

A. Chlamydomonas
B. Euglena
C. Spirogyra
D. Volvox

Question 575:

• WAEC 1999

Use the information on the stages involved in conjugation to answer the 2 questions below

I. Transfer of one cell content into the adjacent cell ll. Formation of a conjugation tube III. Secretion of thick
wall to form a zygospore IV. Formation of a protuberance V. Germination of a filament


Which of the following arrangements is the correct sequence of the process?

A. II, I, IV, V and III
B. IV, II, I, III and V
C. IV, I, II, V and III
D. V, II, III, IV and I