JAMB UTME - Biology - 1986 | Green Bridge CBT

If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal?

Three

Two

One

None Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Heredity (JAMB)

Heredity

Tazama Jibu

Swali 16 Ripoti

The main function of the structure labelled 2 is to

protect the inner parts of the seed

nourish the embryo and the growing plan Jibu sahihi

keep the inner parts moist

maintain the shape if the seed

Maelezo ya Majibu

Soma maelezo ya somo kwenye Nutrition (JAMB)

Nutrition

Tazama Jibu

Swali 17 Ripoti

Viruses are regarded as non-living because they

can niether reproduce asexually nor sexually

cannot survive in their respective enviroments

do not possess characteristics that can be transmitted from one generation to the next

can neither respire nor excrete Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Cell Structure (WAEC)

Cell Structure

Tazama Jibu

Swali 18 Ripoti

The three important organs that are situated close to the stomach are

Kidney, liver and gall bladder

pancreas, liver and kidney

liver, kidney and spleen

gall bladder, pancreas and spleen

Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 19 Ripoti

The main organic substances found in the human body are

carbohydrates, proteins and salts

salts, fats and proteins

fat, carbohydrates and protein Jibu sahihi

salts, fats and carbohydrates

Maelezo ya Majibu

Tazama Jibu

Swali 20 Ripoti

Sample of different soil types are packed in glass tubes whose lower ends are plugged with cotton wool, if these tubes are suspended in a trough of water, water will rise highest after a few hours in

sand Jibu sahihi

loamy

clay

humus

Maelezo ya Majibu

Soma maelezo ya somo kwenye Transport (WAEC)

Soma maelezo ya somo kwenye Animal Nutrition (WAEC)

Soma maelezo ya somo kwenye Soil (WAEC)

Transport

Animal Nutrition

Soil

Tazama Jibu

Swali 21 Ripoti

A larger percentage of tropical soils tends to be acidic because they

contain large quantities of potash

contain large quantities of lime

lose a high proportion of their organic matter to running water

lose lime and potash from the top soil through rain action Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 22 Ripoti

In an agricultural ecosystem, the biotic component consists of

crop, pest and beneficial insects Jibu sahihi

crops, temperature and humidity

pests, beneficial insects and water

crops, water and soil

Maelezo ya Majibu

Soma maelezo ya somo kwenye Ecology Of Population (WAEC)

Soma maelezo ya somo kwenye Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Soma maelezo ya somo kwenye Soil (WAEC)

Ecology Of Population

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

Soil

Tazama Jibu

Swali 23 Ripoti

The stem differs from the root in having the xylem and phloem strands

on the same radii Jibu sahihi

scattered

on alternate radii

towards the pith

Maelezo ya Majibu

Soma maelezo ya somo kwenye Cell Structure (WAEC)

Cell Structure

Tazama Jibu

Swali 24 Ripoti

In the mammalian skin, melanin and keratin are contained in the

sebaceous gland

sweat gland

subcubaneous layer

malpighian layer Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Tissues And Supporting Systems: (WAEC)

Tissues And Supporting Systems:

Tazama Jibu

Swali 25 Ripoti

In addition to the high calories derived from fats and oils, they are

used in producing new cells

necessary for enzyme formation

used as insulators for cold Jibu sahihi

required for growth

Maelezo ya Majibu

Soma maelezo ya somo kwenye Adaptive Colouration (WAEC)

Soma maelezo ya somo kwenye Nucleic Acids (WAEC)

Adaptive Colouration

Nucleic Acids

Tazama Jibu

Swali 26 Ripoti

The structure labelled 1 is the

plumule

radicle

cell membrane

seed coat Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Cell Structure (WAEC)

Soma maelezo ya somo kwenye Internal Structure Of A Flowering Plant (JAMB)

Cell Structure

Internal Structure Of A Flowering Plant

Tazama Jibu

Swali 27 Ripoti

Which of these is a trace element?

Iron

Copper Jibu sahihi

Calcium

Sulphur

Maelezo ya Majibu

Soma maelezo ya somo kwenye Organization Of Life (WAEC)

Organization Of Life

Tazama Jibu

Swali 28 Ripoti

The swollen shoot disease of cocoa tree is caused by a

virus Jibu sahihi

fungus

bacterium

protozoan

Maelezo ya Majibu

Soma maelezo ya somo kwenye Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

Tazama Jibu

Swali 29 Ripoti

Which of the labelled parts will develop into a new maize plant?

Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Nutrition (JAMB)

Nutrition

Tazama Jibu

Swali 30 Ripoti

Gestation in mammals is the period

required for growth after birth

between the formation of the foetus and birth Jibu sahihi

of development from zygote to birth

before the formation of the zygote

Maelezo ya Majibu

Tazama Jibu

Swali 31 Ripoti

The hormones which regulates the amount of glucose in the blood is called

adrenalin

auxin

insulin Jibu sahihi

thyroxine

Maelezo ya Majibu

Soma maelezo ya somo kwenye Hormonal Coordination (WAEC)

Hormonal Coordination

Tazama Jibu

Swali 32 Ripoti

Which of the following pairs are fully adapted to terrestrial life?

Ferns and algae

Ferns and mosses

Bryophytes and flowering plants

Flowering plants and conifers Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 33 Ripoti

The fins making up the limbs of the bony fish are

caudal and ventral

ventra and pelvic

pelvic and pectoral Jibu sahihi

pectoral and dorsal

Maelezo ya Majibu

Soma maelezo ya somo kwenye Ecosystem (WAEC)

Ecosystem

Tazama Jibu

Swali 34 Ripoti

For effective functioning of a bird's quill feather, hooks fit on the ridge of the

Vane

rachis

barbules Jibu sahihi

barbs

Maelezo ya Majibu

Tazama Jibu

Swali 35 Ripoti

When the original king and queen of termites die, they are replaced by

the king and queen of another colony

some adult reproductives from the same colony Jibu sahihi

some adult workers which are specially fed breed

developing nymphs nurtured as secondary reproductives

Maelezo ya Majibu

Tazama Jibu

Swali 36 Ripoti

Incomplete metamorphosis occurs in the

butterfly

grasshopper Jibu sahihi

mosquito

housefly

Maelezo ya Majibu

Soma maelezo ya somo kwenye Variety Of Organisms (JAMB)

Soma maelezo ya somo kwenye Biological Fuel Generation (WAEC)

Soma maelezo ya somo kwenye Physiological Variations (WAEC)

Variety Of Organisms

Biological Fuel Generation

Physiological Variations

Tazama Jibu

Swali 37 Ripoti

Two main distinguishing features of the cervical vertebra are the presence of

short neural spine and vertebraterial canal Jibu sahihi

prozygapophysis and cervical ribs

large centrum and cervical ribs

vertebraterial canal and large centrum

Maelezo ya Majibu

Soma maelezo ya somo kwenye Organization Of Life (WAEC)

Soma maelezo ya somo kwenye Classification (WAEC)

Organization Of Life

Classification

Tazama Jibu

Swali 38 Ripoti

If a person is bitten by a snake on the leg, it is advisable for him to

keep moving so that the venom will ooze out with bleeding

Wash the wound with water containing antiseptic

bandage the wound so that germs do not get in through it

Keep still and apply a tourniquet above the wound Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 39 Ripoti

Which of these animals is radially symmetrical?

squid

Hydra Jibu sahihi

Snail

Cockroach

Maelezo ya Majibu

Soma maelezo ya somo kwenye Organization Of Life (WAEC)

Organization Of Life

Tazama Jibu

Swali 40 Ripoti

Fishes are cold blooded because their body temperature is

constantly low

constantly high

dependent on that of their surroundings Jibu sahihi

regulated at will

Maelezo ya Majibu

Tazama Jibu

Swali 41 Ripoti

The aperture between the left auricle and the left ventricle is guarded by the

auricles valve

tricupid valve

ventricles valve

bicuspid valve Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Application Of The Principles Of Heredity (WAEC)

Application Of The Principles Of Heredity

Tazama Jibu

Swali 42 Ripoti

Which of the following ecological factors are common to both terrestrial and aquatic habitats?

Rainfall, temperature and light Jibu sahihi

Salinity, rainfall and altitude

Tides, wind, rainfall and altitude

pH, salinity, rainfall and humidity.

Maelezo ya Majibu

Soma maelezo ya somo kwenye Ecological Factors (WAEC)

Soma maelezo ya somo kwenye Ecosystem (WAEC)

Ecological Factors

Ecosystem

Tazama Jibu

Swali 43 Ripoti

The severe deficiency of vitamin C leads to

Kwashiokor

beriberi

pellagra

scurvy Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 44 Ripoti

Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata

3 → 2 → 1 → 4

2 → 3 → 1 → 4

2 → 1 → 3 → 4 Jibu sahihi

1 → 2 → 3 → 4

Maelezo ya Majibu

Soma maelezo ya somo kwenye Transport System (WAEC)

Soma maelezo ya somo kwenye Transport (JAMB)

Soma maelezo ya somo kwenye Reproduction (JAMB)

Soma maelezo ya somo kwenye Cell Structure (WAEC)

Transport System

Transport

Reproduction

Cell Structure

Tazama Jibu

Swali 45 Ripoti

Which of the following statement is NOT correct with respect to inhalation in mammals? The

intercostal muscles contract

diaphragm is raised Jibu sahihi

ribs are raised

Pressure of the thoracic cavity decreases

Maelezo ya Majibu

Soma maelezo ya somo kwenye Respiratory System (WAEC)

Respiratory System

Tazama Jibu

Swali 46 Ripoti

Evidence that a tooth is a living part of the mammalian can be found within the

gum

pulp cavity Jibu sahihi

cement

enarmel

Maelezo ya Majibu

Soma maelezo ya somo kwenye Cell Structure (WAEC)

Cell Structure

Tazama Jibu

Swali 47 Ripoti

The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if

fats are presents

carbohydrate is present

protein is present Jibu sahihi

reducing sugar is presents

Maelezo ya Majibu

Soma maelezo ya somo kwenye Classification (WAEC)

Soma maelezo ya somo kwenye Morphology Of Monocotyledonous And Dicotyledonous Plants (WAEC)

Soma maelezo ya somo kwenye Alimentary System (WAEC)

Soma maelezo ya somo kwenye Reproduction (Physical Changes In Males And Females) (WAEC)

Classification

Morphology Of Monocotyledonous And Dicotyledonous Plants

Alimentary System

Reproduction (Physical Changes In Males And Females)

Tazama Jibu

Swali 48 Ripoti

Blood circulation in a mammalian is said to be double because

it passes twice through the heart in a complete circuit Jibu sahihi

it moves in both arteries and veins

it circulates in both the heart and other organs

the heart contain auricles and ventricles

Maelezo ya Majibu

Soma maelezo ya somo kwenye Transport System (WAEC)

Soma maelezo ya somo kwenye Adaptation For Survival (WAEC)

Transport System

Adaptation For Survival

Tazama Jibu

Swali 49 Ripoti

In community, bacteria and fungi are referred to as

producers

decomposers Jibu sahihi

scavengers

consumers

Maelezo ya Majibu

Soma maelezo ya somo kwenye Ecological Management: Tolerance, Minimum And Maximum (WAEC)

Soma maelezo ya somo kwenye Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals (WAEC)

Soma maelezo ya somo kwenye Ecosystem (WAEC)

Ecological Management: Tolerance, Minimum And Maximum

Resources To Be Conserved: Soil, Water, Wildlife, Forest And Minerals

Ecosystem

Tazama Jibu

Swali 50 Ripoti

A major limitation in the use of the potometer for measuring the rate of transpiration is that

it is made of breakable glass materials

it measures the rate of water intake

it measure the rate of water loss throuh the stern only

the movement of the air buble in the potometer cannot be timed accurately Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Movement Of Substances Into And Out Of Cells (WAEC)

Soma maelezo ya somo kwenye Cellular Respiration (WAEC)

Movement Of Substances Into And Out Of Cells

Cellular Respiration

Tazama Jibu






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