JAMB - Biology (1989)
1
The structure labelled 5 is the
2
Which of the labelled parts of the cell contains ribonucleic acid?
3
Which structure is known as the power house of the cell?
4
When a virus is placed in a nonliving medium it
5
A characteristic of the phylum coelenterata is that
Atbilde(B)
they possess a gut with a single opening
6
A multinucleate body without internal cell boundaries is characteristics
7
Double fertilization is a unique feature of
8
Which of the following phyla have members with both internal and external segmentation?
9
Mineral salts can be absorbed into the roots by
Atbilde(C)
diffusion and active transport
10
Which of the following is a common characteristic of crustaceans?
Atbilde(B)
Possession of two pairs of antennae
11
The pedipalps in spiders are used for
12
The body of a snail is divided into head
13
In dicotyledonous stem, each companion cell is founded beside the
14
If a healthy potted plant is continuously kept in dim light
Atbilde(A)
the rate of respiration may equal that of photosynthesis
15
The pancreatic juice contains the enzymes amylopsin,
16
Aged erythrocytes are dissolved in the
17
The seedlings in rice field were found to have thin lanky growth with reddish leaves and poor root development. This is because the soil lacks
18
There will be agglutination when the
Atbilde(B)
Group A serum mixes with group B erythrocytes
19
Which of the following is the function of lymph?
Atbilde(B)
Transports nutrients and oxygen from blood capil
20
The lumbar vertebra when compared with a thoracic vertebra has a
21
Wind pollinated flowers usually have
22
The components of castor oil seed and the maize grain are similar EXCEPT for the
23
A corn differs from a bulb in that
Atbilde(A)
its stem is the main food storage organ
24
Exponential increase in the population of an organism is a characteristic feature off
25
The irreversible life process by which new protoplasm is added to increase the size and weight of an organism can be termed
26
Fruit enlargement can be induced by spraying young ovary with
Atbilde(D)
auxin, cytokinin and gibberellin
27
A fundamental similarity between nervous and hormonal system is that both
Atbilde(A)
involve chemical transmission
28
The region that control most of the unconscious processes of a mammalian body is the
29
During cell division, the two strands of chromosomes are joined at a point called
30
when the two alleles present in an organism are of the same type, the genotype is described as
31
If parents with blood groups AB and O produce six children
Atbilde(A)
three of them will have group B
32
Which of the following is a sex-linked character?
33
In an ecosystem, the LEAST efficient energy transfer link is from
Atbilde(D)
secondary consumers to decomposers
35
A physiological adaptation of plants to the problem of excessive water loss is
Atbilde(B)
reversal of the normal stomatal rhythm
36
which of the ways of controlling bilharzia can result in pollution?
Atbilde(D)
Applying chemical to kill the snails
37
which of the following disease can be caused by a bacterium?
38
Which of the following is a dangerous product of coal burning?
39
5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil?
40
Most irrigated lands often become unproductive in later years because of
41
Farmers practise crop rotation because it
Atbilde(C)
helps to conserve soil fertility
42
Which of the labelled parts is used for feeling?
43
The structure labelled 2 is the
44
Which of the structure is the molar?
45
What is the function of 3?
Atbilde(B)
seizure and tearing of prey
