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WAEC - Biology (1998)

1
Which of the following organisms exhibits both plant and animal characteristics?
Answer
(D)
Euglena
2
Which of the following is not an organ?
Answer
(A)
Hair
3
One major difference between osmosis and diffusion is that diffusion
Answer
(A)
does not need a semipermeable membrane
4
Which of the following is a difference between mitosis and meiosis?
Answer
(C)
Pairing of homologous chromosomes
5
Which of the following can be used for vegetative propagation?
Answer
(A)
Ginger stem
6
Which of the following is a method of artificial vegetative propagation?
Answer
(B)
Layering
7
The above diagram represents a
Answer
(C)
cross section of a root
8
The part labelled II in the diagram is the
Answer
(B)
cortex
9
The part labelled IV in the diagram is the
Answer
(D)
xylem
10
Which of the following is not a function of the blood?
Answer
(C)
Distribution of bile
11
Which of the following statements about the circulation of blood is not correct?
Answer
(D)
The oxygenated blood enters the lungs through the pulmonary vein
12
A difference between the auricle and the ventricle of the mammalian heart is that the
Answer
(E)
Walls of the ventricles are more muscular than that of the auricles
13
Which of the following organism respires through the body surface
Answer
(D)
Amoeba
14
The stomata of a leaf performs the same function as
Answer
(A)
spiracles of insects
15
Which of the following does not happen during inspiration?
Answer
(D)
Diaphragm relaxes
16
Which of the these is not an excretory product of plant?
Answer
(D)
Sweat
17
Which of these is not a function of the kidney?
Answer
(E)
Production of bile
18
In which part of the kidney does ultrafiltration take place?
Answer
(A)
Bowman’s capsule
19
Which of the following organs is concerned with detoxication of harmful compounds?
Answer
(D)
Liver
20
The hormone that promotes secondary sexual characteristics in females is
Answer
(E)
oestrogen
21
The cell body in the diagram labelled
Answer
(A)
I
22
The function of the part labelled II in the diagram is to
Answer
(C)
protect the axon
23
The organ responsible for equalising air pressure in the ear is
the
Answer
(C)
Eustachian tube
24
Which of the following organisms lacks a reproductive organ?
Answer
(A)
Chlamydomonas
25
Which of the following mammalian features acts as a shock-absorber to the developing embryo?
Answer
(A)
Amniotic fluid
26
The collective name for the female parts of the flower is
Answer
(A)
gynoecium
27
If the petals of a flowering plant are removed. Which of the following processes is likely to be affected?
Answer
(B)
Pollination
28
The part labelled II in the diagram is the
Answer
(B)
endosperm
29
The part labelled IV in the diagram is the
Answer
(C)
radicle
30
The function of the part labelled V in the diagram is the
Answer
(D)
protection of the radicle
31
Which of the following is a feature of wind pollinated flowers?
Answer
(E)
Smooth, light and numerous pollen grains
32
In testing for starch in a leaf the function of alcohol is to
Answer
(E)
extract the chlorophyll from the leaf
33
Which of the following processes removes CO2 from the atmosphere?
Answer
(B)
Photosynthesis
34
The role of bacteria in the nitrogen cycle includes the following except
Answer
(D)
converting carbohydrates to carbondioxide
35
The mode of nutrition which describes feeding habit in animals is
Answer
(B)
holozoic
36
Which of the following organisms has homodont dentition?
Answer
(E)
Lizard
37
The pancreatic duct opens into the
Answer
(D)
duodenum
38
The enzyme that acts on milk in the stomach is
Answer
(D)
renin
39
Which of the following plants is a carnivore?
Answer
(B)
Sundew
40
Hydra feeds by
Answer
(A)
digesting its food extra cellularly
41
Which of the following contains a reducing sugar?
Answer
(A)
Milk
42
Which of the following instrument can be used to measure relative humidity?
Answer
(B)
Hygrometer
43
In a food chain, each stage in the chain is a
Answer
(D)
trophic level
44
The diagram above illustrates
Answer
(C)
the flow of energy in a habitat
45

Which of these organisms occupies the 3rd trophic
level?

Answer
(B)
Small fish
46

Which of these organisms is a herbivore?

Answer
(A)
Tadpole
47
The presence of stilt and breathing roots are features of plants found in the
Answer
(C)
mangrove forests
48
Excessive loss of water from the leaf is prevented by the
Answer
(B)
cuticle
49
Which of the following organisms will be a colonizing species of a heap of moist sub soil?
Answer
(B)
Ferns
50
The earthworm is important because
Answer
(D)
it aerates the soil
51
which of the following plant parts is not a storage organ?
Answer
(D)
Banana stem
52
Which of the following statements about poliomyelitis is not correct. It
Answer
(A)
is a bacterial disease
53
Oil is sprayed over stagnant water in which mosquitoes breed in order to
Answer
(B)
prevent larva or pupa from attaching itself to the surface
54
In animals the main protective covering is found in the
Answer
(B)
epithelial tissues
55
How many chromosomes will be present in a gamete if the somatic cell has eight(8) chromosomes?
Answer
(A)
4