2012 - WAEC Biology Past Questions & Answers - page 1

1
The science of life is referred to as
A
anatomy
B
biology
C
ecology
D
phylogeny
CORRECT OPTION: b
2
The epidermis of a leaf is considered an example of a tissue because the cells
A
allow sunlight to pass through.
B
are covered by a waxy cuticle
C
all possess a similar structure and function
D
allow water to enter them by osmosis
CORRECT OPTION: c
3
The organism at the organ level of organisation of life is
A
Euglena
B
Spirogyra
C
Ginger
D
Tapeworm
CORRECT OPTION: c
4
The disadvantage of complexity of organisation in the higher organisms is that it leads to
A
mutual interdependence between component cells
B
internal structural specialization
C
increased adaptation to environment
D
slower rate of diffusion of oxygen to individual cells
CORRECT OPTION: d
5
In which of the following multicellular organisms is-interdependence of cells maintained?
A
Spirogyra
B
Volvox
C
Eudorina
D
Pandorina
CORRECT OPTION: b
6
Which of the following processes occurs in the second phase of meiosis?
A
Homologous chromosomes separate
B
Two daughtercells are formed
C
Fertilization occurs
D
Segregation of genes occurs
CORRECT OPTION: a
7
The muscle cell fluid of an athlete was tested immediately after a 1 O m race and was found to contain a high
concentration of lactic acid. Explain what could have caused this. The
A
athlete must have eaten food containing lactic acid just before the race
B
Athlete must have injected lactic acid into his blood just before the race
C
athletes muscle must have carried out anaerobic respiration during the race
D
athlete must have inhaled lactic acid from the environment during the race
CORRECT OPTION: c
8
The graph above represents the growth pattern of an animal. Which of the following groups of animals shows this
pattern of growth?
A
Cestoda
B
Reptilia
C
Amphibia
D
Insecta
CORRECT OPTION: d
9
The pulmonary circulation involves movement of the blood to and from the
A
brain
B
Kidney
C
Liver
D
lungs
CORRECT OPTION: d
10
Which of the individual is likely to be suffering from haemophilia?
A
I
B
II
C
III
D
IV
CORRECT OPTION: d
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