Instruction
JAMB Biology 1998
JAMB (UTME)
Biology
1998
Q9351.
A sex-linked character cannot be passed on directly from
A
father to son
B
mother to daughter
C
mother to son
D
father to daughter
Correct Answer: A
A father passes his Y chromosome to sons, so X-linked traits cannot be passed from father to son.
JAMB (UTME)
Biology
1998
Q9352.
The biological association that contributes directly to succession in a community is
A
competition
B
predation
C
parasitism
D
commensalism
Correct Answer: A
Competition drives succession by favoring better-adapted species.
JAMB (UTME)
Biology
1998
Q9353.
The group of insects that have mouth parts adapted for both piercing and sucking is
A
cockroaches, aphids and mosquitoes
B
aphids, houseflies and moths
C
mosquitoes, tsetse flies and aphids
D
aphids, beetles and grasshoppers
Correct Answer: C
Mosquitoes, tsetse flies, and aphids have piercing and sucking mouthparts.
JAMB (UTME)
Biology
1998
Q9354.
The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by
A
birds and reptiles
B
fishes and birds
C
reptiles and fishes
D
birds and molluscs
Correct Answer: A
Birds and reptiles share scales, shelled eggs, and bony skulls.
JAMB (UTME)
Biology
1998
Q9355.
The habitat of the cysticercus of Taenia solium is
A
alimentary canal of cattle
B
muscles of pig
C
alimentary canal of pig
D
muscles of cattle
Correct Answer: B
The cysticercus (larval stage) of Taenia solium is found in pig muscles.
JAMB (UTME)
Biology
1998
Q9356.
The organism that has a hydrostatic skeleton is
A
Tilapia
B
Hydra
C
Mosquito larva
D
Earthworm
Correct Answer: D
Earthworms have a hydrostatic skeleton (fluid-filled coelom).
JAMB (UTME)
Biology
1998
Q9357.
The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by
A
birds and reptiles
B
fishes and birds
C
reptiles and fishes
D
birds and molluscs
Correct Answer: A
Birds and reptiles share these characteristics.
JAMB (UTME)
Biology
1998
Q9358.
The group of Arthropods that has no antennae is the
A
crustacea
B
chilopoda
C
arachnida
D
diplopoda
Correct Answer: C
Arachnids (spiders, scorpions) have no antennae.
JAMB (UTME)
Biology
1998
Q9359.
The bird's bill adapted for fishing is labelled
Correct Answer: D
The long, pointed bill (IV) is adapted for fishing.
JAMB (UTME)
Biology
1998
Q9360.
Toes of the feet ending in a sharp, curved hook suitable for holding and tearing are most likely to belong to the bird with the bill in
Correct Answer: B
The hooked bill (II) indicates a bird of prey with sharp claws.
Instruction
JAMB Biology 1999
JAMB (UTME)
Biology
1999
Q9361.
The function of ribosomes in cells is
A
protein synthesis
B
starch synthesis
C
transport of materials
D
lipid storage
Correct Answer: A
Ribosomes are the site of protein synthesis.
JAMB (UTME)
Biology
1999
Q9362.
Which of the following structures is common to Euglena, white blood cell and Amoeba?
A
Vacuole
B
Cell wall
C
Cilia
D
Cell membrane
Correct Answer: D
All cells have a cell membrane.
JAMB (UTME)
Biology
1999
Q9363.
The term 'Thallophyta' refers to
A
ferns and mosses
B
algae and fungi
C
mosses and liverworts
D
fungi and ferns
Correct Answer: B
Thallophyta includes algae and fungi.
JAMB (UTME)
Biology
1999
Q9364.
The following organisms are hermaphrodites EXCEPT
A
snail
B
taenia
C
schistosoma
D
earthworm
Correct Answer: C
Schistosoma has separate sexes (not hermaphroditic).
JAMB (UTME)
Biology
1999
Q9365.
Parasitic forms are NOT found among
A
platyhelminthes
B
nematodes
C
molluscs
D
annelids
Correct Answer: D
Annelids are mostly free-living; few are parasitic.
JAMB (UTME)
Biology
1999
Q9366.
Protozoa
A
4 → 1 → 2 → 3
B
4 → 3 → 2 → 1
C
4 → 2 → 1 → 3
D
4 → 2 → 3 → 1
Correct Answer: B
Simple to complex: Protozoa → Nematoda → Platyhelminthes → Mollusca.
JAMB (UTME)
Biology
1999
Q9367.
Spirogyra, Euglena and Chlamydomonas share many characteristics EXCEPT
A
nutrition
B
reproduction
C
mobility
D
irritability
Correct Answer: A
Spirogyra is autotrophic; Euglena is mixotrophic; Chlamydomonas is autotrophic. Nutrition differs.
JAMB (UTME)
Biology
1999
Q9368.
The prothallus of a fern is equivalent to the gametophyte generation of a moss because it
A
is inconspicuous
B
has rhizoids
C
bears sexual organs
D
is multicellular
Correct Answer: C
Both the fern prothallus and moss gametophyte bear sexual organs.
JAMB (UTME)
Biology
1999
Q9369.
What is the function of trichocyst in Paramecium?
A
Movement
B
Defence
C
Excretion
D
Reproduction
Correct Answer: B
Trichocysts are defensive organelles in Paramecium.
JAMB (UTME)
Biology
1999
Q9370.
At which stage in this cycle can man be infected?
Correct Answer: C
Man is infected by the larval stage (5) of the parasite.
JAMB (UTME)
Biology
1999
Q9371.
Which stage is found in the muscle of an infected pig?
Correct Answer: D
The cysticercus stage (6) is found in pig muscle.
JAMB (UTME)
Biology
1999
Q9372.
The long and coiled intestine of a young tadpole is an adaptation to its
A
herbivorous diet
B
carnivorous diet
C
aquatic habitat
D
insectivorous habit
Correct Answer: A
A long intestine is adapted for digesting plant material (herbivorous diet).
JAMB (UTME)
Biology
1999
Q9373.
Lung hooks are used for respiration in
A
spiders
B
insects
C
millipedes
D
snails
Correct Answer: A
Spiders use book lungs (lung hooks) for respiration.
JAMB (UTME)
Biology
1999
Q9374.
Insects and millipedes have many features in common EXCEPT
A
exoskeleton
B
jointed appendages
C
compound eyes
D
segmented body
Correct Answer: C
Millipedes have simple eyes, not compound eyes.
JAMB (UTME)
Biology
1999
Q9375.
The major function of the swim-bladder in fishes is
A
breathing
B
buoyancy
C
swimming
D
diving
Correct Answer: B
The swim bladder regulates buoyancy in bony fish.
JAMB (UTME)
Biology
1999
Q9376.
Which of the following statements gives the BEST description of bark?
A
Tissues outside the vascular cambium
B
Cork-like tissues found only in stems
C
Brown tissues never found in primary growth
D
Cork-like tissues of old trees
Correct Answer: A
Bark refers to all tissues outside the vascular cambium.
JAMB (UTME)
Biology
1999
Q9377.
In the transverse section of the leaf of maize, vascular bundles are arranged in
A
a row
B
one circle
C
alternate positions
D
two circles
Correct Answer: C
Maize leaves have vascular bundles in alternate positions.
JAMB (UTME)
Biology
1999
Q9378.
If an animal has a diastema, it would NOT possess
A
incisors
B
canines
C
premolars
D
molars
Correct Answer: B
A diastema is a gap where canines are absent or reduced.
JAMB (UTME)
Biology
1999
Q9379.
If the gall bladder of a mammal is damaged, which of the following will be most seriously affected?
A
Glycolysis
B
Digestion of starch
C
Digestion of fats and oils
D
Digestion of proteins
Correct Answer: C
The gall bladder stores bile, which emulsifies fats.
JAMB (UTME)
Biology
1999
Q9380.
Which of the following will be first digested if ingested at the same time?
A
Cooked beans
B
Cooked rice
C
Cod liver oil
D
Roasted beef
Correct Answer: B
Cooked rice (starch) is digested first, starting in the mouth.
JAMB (UTME)
Biology
1999
Q9381.
If the phloem of a healthy plant is killed by heat treatment, the
A
upward movement of salts will cease
B
food manufacture in the leaves will accumulate
C
whole plant will die immediately
D
leaves of the plant will become yellow
Correct Answer: B
Killing phloem stops food transport, causing food to accumulate in leaves.
JAMB (UTME)
Biology
1999
Q9382.
In the mammalian respiratory system, exchange of gases occurs in the
A
lungs
B
bronchi
C
bronchioles
D
alveoli
Correct Answer: D
Gas exchange occurs in the alveoli.
JAMB (UTME)
Biology
1999
Q9383.
The main waste products formed in plants are
A
alkaloids, tannins and resins
B
water, alkaloids and carbon dioxide
C
water, carbon dioxide and oxygen
D
carbon dioxide, water and nitrogenous compounds
Correct Answer: C
Plant waste products include water, carbon dioxide, and oxygen.
JAMB (UTME)
Biology
1999
Q9384.
In the kidney, the malpighian corpuscle is located in the
A
medulla
B
hilum
C
cortex
D
pelvis
Correct Answer: C
Malpighian corpuscles (glomeruli) are in the renal cortex.
JAMB (UTME)
Biology
1999
Q9385.
The skin, through the sweat glands, functions as
A
an excretory organ
B
a respiratory organ
C
a sensory organ
D
a protective organ
Correct Answer: A
Sweat glands excrete water, salts, and urea.
JAMB (UTME)
Biology
1999
Q9386.
Parenchyma cells serve as supporting tissue when they
A
contain chloroplasts
B
have crystals
C
become flaccid
D
become turgid
Correct Answer: D
Turgid parenchyma cells provide support through turgor pressure.
JAMB (UTME)
Biology
1999
Q9387.
Taxism differs from tropism because
A
the whole organism is affected
B
it is a directional movement
C
it is a response to multi-directional stimuli
D
part of the organism is affected
Correct Answer: A
Taxis involves the whole organism; tropism involves a plant part.
JAMB (UTME)
Biology
1999
Q9388.
A dry dehiscent fruit which breaks up into one-seeded parts is a
A
schizocarp
B
capsule
C
follicle
D
legume
Correct Answer: A
A schizocarp breaks into one-seeded segments.
JAMB (UTME)
Biology
1999
Q9389.
Airspaces are characteristic of seeds or fruits dispersed by
A
birds
B
water
C
wind
D
explosive mechanism
Correct Answer: B
Airspaces provide buoyancy for water dispersal.
JAMB (UTME)
Biology
1999
Q9390.
In vegetative propagation, which of the following requires part of another plant to develop?
A
Scion
B
Bulb
C
Rhizome
D
Sucker
Correct Answer: A
A scion is grafted onto a rootstock from another plant.
JAMB (UTME)
Biology
1999
Q9391.
Which of these plant groups are normally propagated by asexual means?
A
Banana, yam, pineapple and cassava
B
Yam, cassava, rubber and banana
C
Yam, cassava, orange and banana
D
Banana, cassava, coffee and pineapple
Correct Answer: A
Banana, yam, pineapple, and cassava are propagated asexually.
JAMB (UTME)
Biology
1999
Q9392.
In a mammal, the placenta performs functions similar to those of the
A
lungs, kidneys and digestive system
B
lungs, heart and nervous system
C
liver, intestines and reproductive system
D
intestines, heart and digestive system
Correct Answer: A
The placenta performs respiratory, excretory, and digestive functions.
JAMB (UTME)
Biology
1999
Q9393.
The radicle of a bean seedling grows most rapidly in the region
A
of the root tip
B
just above the root tip
C
just around the root tip
D
just below the root tip
Correct Answer: B
The region of elongation is just above the root tip.
JAMB (UTME)
Biology
1999
Q9394.
The main function of the choroid is
A
protection of the eye ball
B
transmission of light
C
supply of nutrients to tissues of the eye
D
converging light
Correct Answer: C
The choroid supplies blood (nutrients) to the eye.
JAMB (UTME)
Biology
1999
Q9395.
What part of the central nervous system is concerned with answering an examination question?
A
Cerebrum
B
Cerebellum
C
Medulla oblongata
D
Spinal cord
Correct Answer: A
The cerebrum is responsible for thinking and reasoning.
JAMB (UTME)
Biology
1999
Q9396.
If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned?
Correct Answer: B
Bb × bb gives 2 Bb (dark) and 2 bb (albino). So 2 children will be dark-skinned.
JAMB (UTME)
Biology
1999
Q9397.
A red-coloured flower when crossed with a white-coloured one produced pink flowers. This is an example of
A
complete dominance
B
blending inheritance
C
interaction of genes
D
back crossing
Correct Answer: B
Blending inheritance (incomplete dominance) produces an intermediate phenotype.
JAMB (UTME)
Biology
1999
Q9398.
The turbidity of a pond can be measured using the
A
anemometer
B
secchi disc
C
theodolite
D
hydrometer
Correct Answer: B
A Secchi disc measures water turbidity.
JAMB (UTME)
Biology
1999
Q9399.
The most important substances necessary for the maintenance of life are carbon, oxygen,
A
hydrogen, soil and enzymes
B
hydrogen, salt and water
C
nitrogen, salt and soil
D
nitrogen, salt and water
Correct Answer: B
Carbon, oxygen, hydrogen, salt, and water are essential for life.
JAMB (UTME)
Biology
1999
Q9400.
If an organism obtains its food by means of haustoria, it is said to be
A
holophytic
B
heterophytic
C
saprophytic
D
parasitic
Correct Answer: D
Haustoria are specialized structures for parasitic nutrition.