JAMB Biology 1997
Q9301.
Which is the most important pollutant of the marine environment in Nigeria?
A
Insecticides
B
Sewage
C
Oil
D
Inorganic fertilizers
C
Q9302.
One of the most effective ways of controlling guinea worm is by
A
treating the disease
B
public enlightenment campaigns
C
accelerating rural development
D
provision of portable drinking water
D
Q9303.
During binary fission in lower organisms, the nucleus is known to undergo
A
mitosis
B
meiosis
C
fragmentation
D
mutation
A
Q9304.
One reason for the success of Mendel's work is that he
A
was the first to carry out research work on modern genetics
B
introduced quantitative and qualitative elements into his work
C
selected two characteristics only at a time for study
D
drew up his laws of inheritance based on his knowledge of chromosomes
C
Q9305.
Which of the following characters is NOT sex-linked?
A
Albinism
B
Baldness
C
Haemophilia
D
Colour blindness
A
Q9306.
Water loss is regulated in plants and animals by both the
A
scales and the skin
B
scales and the hair
C
thick leaves and the feathers
D
leathery cuticle and the feathers
A
Q9307.
What combination of characters should a prey develop to survive in the environment of its predator?
A
Camouflage, well developed limbs and effective vision
B
Showy colour, big body and well developed limbs
C
Camouflage, big body and effective vision
D
Showy colour, well developed muscles and an acute sense of smell
A
Q9308.
The three classes in a termitarium are
A
soldiers, queen and workers
B
workers, soldiers and reproductive
C
soldiers, workers and kings
D
kings, queen and soldiers
B
Q9309.
The main distinguishing feature of mammals is the possession of
A
skin
B
scale
C
nail
D
hair
D
Q9310.
The theory of natural selection was developed by
A
Lamarck and Darwin
B
Darwin and Wallace
C
Wallace and Mendel
D
Mendel and Lamarck
B
JAMB Biology 1998
Q9311.
The nucleus is considered the control organelle of a cell because it
A
contains the genetic material
B
contains the nuclear sap
C
is bounded by the nuclear membrane
D
is located at the centre of the cell
A
Q9312.
The prokaryotic cell type is characterized by a
A
complex cytoplasm in which different regions are poorly defined
B
localization of different regions of the cell into tissues
C
collection of organelles and macromolecular complexes
D
simple cytoplasm with well-defined regions
A
Q9313.
The natural tendency of organisms as they evolve is to
A
decrease in size
B
increase in number
C
develop specialized structures
D
feed indiscriminately
C
Q9314.
In snails, the hard calcareous shells are secreted by the
A
radula
B
ctenidium
C
pneumostome
D
mantle
D
Q9315.
The structure labelled I is formed as a result of the fusion of
A
two pairs of nuclei
B
several pairs of nucleus
C
a pair of nuclei
D
two pairs of nucleoli
C
Q9316.
The special name of the part labelled II is
A
gametangium
B
hypha
C
suspensor
D
zygospore
B
Q9317.
The ability of the cockroach to live in cracks and crevices is enhanced by the possession of
A
wings and segmented body
B
compound eyes
C
claws on the legs
D
dorso-ventrally flattened body
D
Q9318.
The caste of termites that lacks pigmentation is the
A
king
B
worker
C
soldier
D
queen
B
Q9319.
The structures that prevent food particles from escaping through the fish gills are called gill
A
arches
B
filaments
C
rakers
D
lamellae
C
Q9320.
A distinguishing feature of mammals is the possession of
A
skin
B
scale
C
nail
D
hair
D
Q9321.
Which of the following structures is capable of producing more tissues in the stem of a herbaceous flowering plant?
A
Epidermis
B
Pericycle
C
Xylem
D
Cambium
D
Q9322.
The manufacture of carbohydrates by plants takes place only in
A
the leaves
B
the green stems
C
chlorophyllous parts
D
flowering plants
C
Q9323.
In a water culture experiment, a plant showed poor growth and yellowing of the leaves. These may be due to deficiency of
A
copper
B
iron
C
magnesium
D
calcium
C
Q9324.
In Millon's test, when the reagent is added to a protein food item, a white precipitate is produced which turns
A
blue on heating
B
yellow on heating
C
green on heating
D
red on heating
D
Q9325.
Regulation of blood sugar level takes place in the
A
pancreas
B
ileum
C
liver
D
kidney
A
Q9326.
Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because they have
A
a large volume to surface area ratio
B
a large surface area to volume ratio
C
their bodies immersed in the nutrients
D
their outer membrane made of cellulose
B
Q9327.
The heart of the adult frog consists of
A
two auricles and two ventricles
B
one auricle and one ventricle
C
one auricle and two ventricles
D
one ventricle and two auricles
D
Q9328.
In adult mammalian blood, the cells which lack nucleus are the
A
erythrocytes
B
leucocytes
C
lymphocytes
D
monocytes
A
Q9329.
Which of the following movement occurs during exhalation?
A
The diaphragm and intercostal muscles relax
B
The thoracic cavity increases in volume
C
The diaphragm and intercostal muscles contract
D
The diaphragm contracts and the intercostal muscles relax
A
Q9330.
In which of the following groups of animals is the Malpighian tubule found?
A
Lizards, snakes and frogs
B
Crickets, houseflies and grasshoppers
C
Millipedes, centipedes and scorpions
D
Earthworms, roundworms and flatworms
B
Q9331.
Which of the following is not a function of the mammalian skeleton?
A
Protection
B
Respiration
C
Transportation
D
Support
C
Q9332.
The ovary represented is
A
half-superior
B
inferior
C
superior
D
half-inferior
C
Q9333.
The corolla is partly represented by
A
Q9334.
The most reliable estimate of growth is by measuring changes in
A
length
B
volume
C
surface area
D
dry weight
D
Q9335.
A dry fruit formed from two or more carpels containing several seeds is a
A
follicle
B
legume
C
capsule
D
schizocarp
C
Q9336.
The outermost embryonic membrane in the mammal is the
A
amnion
B
chorion
C
allantois
D
yolk sac
B
Q9337.
The small masses of nervous tissues in which many neurons have their nuclei are called
A
dorsal roots
B
ventral roots
C
ganglia
D
synapses
C
Q9338.
A group of organisms of different species living in a particular area is described as a
A
colony
B
community
C
population
D
niche
B
Q9339.
Which of the following is the direct consequence of transferring energy from one trophic level to another?
A
Loss of energy as heat
B
Increase in biomass
C
Decrease in population
D
Increase in species diversity
A
Q9340.
The condition that encourages denitrification is
A
low soil oxygen
B
high soil nitrogen
C
absence of soil bacteria
D
lightning and thunderstorm
A
Q9341.
A freshwater plant such as water lily can solve the problem of buoyancy by the possession of
A
aerenchymatous tissues
B
dissected leaves
C
thin cell walls of the epidermis
D
water-repelling epidermis
A
Q9342.
The sequence of the biomes in Nigeria from Port Harcourt to Damaturu is
A
estuarine → rain forest → Guinea savannah → Sahel savannah
B
rain forest → Guinea savannah → estuarine → desert
C
estuarine → Guinea savannah → rain forest → Sahel savannah
D
rain forest → estuarine → Guinea savannah → desert
A
Q9343.
Soil micro-organisms are beneficial because of their involvement in
A
photosynthesis
B
translocation
C
cycling of nutrients
D
respiration using soil air
C
Q9344.
Which of the following groups of diseases are associated with water?
A
I, II and III
B
II, IV and V
C
II, III and IV
D
I, II and V
A
Q9345.
One of the ways in which body cells differ from gamete cells is in the
A
type of centromeres they contain
B
number of chromosome pairs they contain
C
type of chromatids they contain
D
number of chromosomes they contain
D
Q9346.
In blood transfusion, agglutination occurs when
A
white blood cells from two individuals meet
B
two different antibodies meet
C
two different antigens meet
D
contrasting antigens and antibodies meet
D
Q9347.
The unrestricted pattern is presented by
A
Q9348.
After one week of life, the weights of five chicks of the same sex hatched simultaneously from the eggs of the same hen and fed on the same diet were 45g, 40g, 35g, 33g, and 30g. This is an example of
A
growth rate
B
natural selection
C
variation
D
mutation
C
Q9349.
The phenotype of an individual can be summed up as the
A
totality of the expressed traits
B
individual's physical appearance
C
individual's entire genetical make-up
D
physiological traits of the individual
A
Q9350.
The correct increasing order of size for the cell components responsible for heredity is
A
chromosome → DNA → nucleus → gene
B
DNA → gene → chromosome → nucleus
C
chromosome → nucleus → DNA → gene
D
DNA → gene → nucleus → chromosome
B