Biology Past Questions

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1746

Water in the human body is derived from the following sources except through

A. drinking water
B. food substances
C. cytoplasm of worn-out cells
D. respiratory activity
E. absorption by the skin

View Answer & Discuss (2) WAEC 1990

1747

The conservation of natural resources can be achieved by the following except

A. creation of national parks
B. formation of conservation societies and agencies
C. establishment of game reserves
D. deregulated harvesting
E. making laws on conservation

View Answer & Discuss (1) WAEC 1990

1748

Water rises most rapidly in

A. sandy soil
B. clayey soil
C. sandy-loam soil
D. loamy soil
E. humus soil

View Answer & Discuss (10) WAEC 1990

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1749

Thrombocytes are blood cells responsible for initiating

A. phagocytosis of bacteria
B. synthesis of ribosomes
C. clotting of the blood
D. immunity to certain infectious diseases
E. removal of carbondioxide from tissues.

View Answer & Discuss (1) WAEC 1990

1750

When gametes from pure breeding parents with contrasting features such as tallness and shortness are
involved in monohybrid cross, the offspring in the first filial generation are usually

A. pure breed
B. heterozygous dominant
C. homozygous recessive
D. mutants
E. co-dominant

View Answer & Discuss WAEC 1990

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