JAMB Biology past questions and answers
1
Which of the following is a behavioural adaptation that protects prey from predators?
A
Hibernation
B
Shedding of leaves
C
Secreting irritating fluid
D
Dormancy
2
The period of inactivity seen in some animals during long period of heat or drought is
A
Migration
B
Aestivation
C
Hibernation
D
Adaptation
3
The insect trapping movements of the leaves of the venus fly trap is a behavioural adaptation for
A
support
B
surviving adverse weather conditions
C
obtaining food
D
dormancy
4
Animals are said to gregarious when
A
they survive adverse conditions of cold weather
B
they transmit information from one individual to another
C
they are of the same species moving together in a group
D
they give an alarm to alert others to show the normal protective behaviour of the group when danger threatens
5
The type of nutrition shown by spirogyra is
A
Symbiosis
B
Holozoic
C
Chemosynthetic
D
Holophytic
6
Raw materials required by green plants to manufacture their food are
A
mainly fluids
B
inorganic substances
C
living material
D
mainly gases
7
Which of the following pairs of organisms are photosynthetic?
A
Amoeba and paramecium
B
Euglena and chlamydomonas
C
Volvox and Rhizopus
D
Nostoc and plasmodium
8
The type of nutrition in which two organisms of different species live together and derive nutrients from each other is
A
symbiotic nutrition
B
saprophytic nutrition
C
holozoic nutrition
D
holophytic nutrition
9
Which of the following statement about the similarities in plant and animal transport is correct?
A
Materials and hormones are transported in fluid form
B
The transport medium is made up of only tissues
C
Their materials are transported in the same vessels
D
Diffusion is not required
10
Which of the following describes the function of lymph
A
Temperature regulation
B
Production of antibodies
C
Engulfing
D
Body defence
11
One of the major ways in which the blood is able to defend the body against disease causing organisms is
A
Absorption of fatty acids and glycerol
B
Clumping
C
Single circulation
D
Translocation
12
Which of the following is not a transmittable character in plants
A
Habit of growth
B
Resistance to environmental factors
C
Life span
D
Haemophilia
13
Inheritable character/features possessed by an organism can be referred to as
A
Genes
B
Locus
C
Traits
D
Allelo morphs
14
One of the following is a process of transmission of hereditary characteristics by chromosomes
A
Genes relating to the same character occupy identical locations on the chromosomes
B
Separation of homologous chromosomes into four daughter cells
C
Separation of gametes during fertilization
D
Dictating the formation of a protein by a gene in a chromosome
15
The attachment of the embryo to the wall of the uterus is called
A
Ovulation
B
Implantation
C
Gametogenesis
D
Placentation
16
Which of the reproductive system in mammals secretes a part of the seminal fluid which raises the pH of the fluid in the female reproductive system?
A
Cowper’s gland
B
Prostate gland
C
Vas deferens
D
Seminal Vesicle
17
JAMB Biology question image 1276
The part labelled a in the above diagram is used for
A
Detection of pressure in water
B
Maintaining buoyancy in water
C
Gaseous exchange
D
Movement in water
18
JAMB Biology question image 1275
The above organism can be classified under which phylum in the animal kingdom
A
Nematoda
B
Chordata
C
Porifera
D
Annelida
19
One important characteristics of green plant is that they
A
possess specialized sense organs
B
Are usually motile
C
Are autotropic
D
Respond slowly to stimuli
20
A virus can sometimes be regarded as a living organism because it
A
causes diseases in plants and animals
B
It exists in a variety of shapes
C
Is easily visible with the aid of an electron microscope
D
Reproduces in living cells
21
A population is best described as
A
A group of the same species of organisms living together
B
A group of animals and plants living together
CA group of insects and grasses
D
Different species of wild animals
22
The number of times an organism occurs within a given area of a habitat is referred to as
A Population growth rate
B Population frequency
C Population growth rate
D Population density
23
Reading the verdict of a case by a magistrate is an example of
A
A reflex action
B
An instinct
C
A conditioned reflex
D
A voluntary action
24
Which of the following structures controls the activities of the living cell?
A
Nucleus
B
Centrosome
C
Mitochondrion
D
Golgi body
25
Which of the following are components of glomerular filtrate?
A All the components of blood except mineral salts
B Water and salt only
C All the components of blood except plasma protein and cells
D Blood cells, amino acid, salts and nitrogenous wastes
26
The sum total of adaptive changes from pre-existing form that have taken place over a long time resulting in diversity of forms, structures and functions among organism is referred to as
A
Specification
B
Inorganic Evolution
C
Evolution
D
Organic Evolution
27
The specific portion of a habitat which is occupied by a particular species is referred to as
A
Ecological population
B
Ecological niche
C
Biotic community
D
Ecosystem
28
In plants, respiration occurs in
A
The stomata and lenticel only
B
Mesophyll cells only
C
All living cells
D
The root only
29
Which of the following is an example of discontinous variatio?
A
The range in height of a pea plant from 30cm to 50cm
B
Offsprings including two male cats and three female cats
C
The colour of pear plants grown in the dark
D
The adult body weight ranging from 50kg to 95kg
30
Which of the following type of soil has the highest water retaining capacity?
A
Loam
B
Laterite
C
Clay
D
Sand
31
Rabbits cannot survive in an aquatic habitat because they have
A
fore and hind limbs
B
no gills
C
no fins
D
no scales
32
Which of the following substances pass through the root cell membrane by osmosis?
A
Ceil sap
B
Carbon dioxide
C
Oxygen
D
Water
33
Trees in Savanna habitats usually have thick bark which mainly.
A
Reduces the rate of transpiration
B
Protect them from scorching sun
C
Protect them from heavy winds
D
Resist bush fires
34
Competition among individuals of a population increases the
A
Number of organisms
B
Availability of nutrient supplied
C
Survival of the fittest
D
Enlargement of the territory
35
In natural selection, Darwin proposed that evolution occurred because of the following conditions except
A
that nature selects those that will survive to reproduce their kind
B
there is a fierce competition among the offspring
C
that the weaker offspring are eliminated
D
food and other needs are abundant
36
Which of the following substances has the highest amount of energy in joules per unit weight?
A
Carbohydrates
B
Fats
C
Proteins
D
Vitamins
37
Which of the following pairs of scientists discovered the Rhesis factor in human blood?
A
Hooke and Lavine
B
Darwin and Landsteiner
C
Landsteiner and Lavine
D
Hooke and Darwin
38
The study of an individual organism or a single species of organism and its environment is
A
Autecology
B
Ecological concepts
C
Synecoloy
D
Biotic composers
39
Which of the following is a nitrifying bacterium?
A
Rhizobium
B
Nictrobacter
C
Azotobacter
D
Pseudomonas
40
Which of the following is the effect of using artificial pollination in plant breeding?
A
Production of healthy crops
B
Lengthening the maturity time of crops
C
Making crops susceptible to disease
D
Improvement of the variety of crops
