Which of the following is a behavioural adaptation that protects prey from predators?
Trả lời
(C)
Secreting irritating fluid
2
The period of inactivity seen in some animals during long period of heat or drought is
Trả lời
(B)
Aestivation
3
The insect trapping movements of the leaves of the venus fly trap is a behavioural adaptation for
Trả lời
(C)
obtaining food
4
Animals are said to gregarious when
Trả lời
(C)
they are of the same species moving together in a group
5
The type of nutrition shown by spirogyra is
Trả lời
(D)
Holophytic
6
Raw materials required by green plants to manufacture their food are
Trả lời
(B)
inorganic substances
7
Which of the following pairs of organisms are photosynthetic?
Trả lời
(B)
Euglena and chlamydomonas
8
The type of nutrition in which two organisms of different species live together and derive nutrients from each other is
Trả lời
(A)
symbiotic nutrition
9
Which of the following statement about the similarities in plant and animal transport is correct?
Trả lời
(A)
Materials and hormones are transported in fluid form
10
Which of the following describes the function of lymph
Trả lời
(D)
Body defence
11
One of the major ways in which the blood is able to defend the body against disease causing organisms is
Trả lời
(B)
Clumping
12
Which of the following is not a transmitable character in plants
Trả lời
(D)
Haemophilia
13
Inheritable character/features possessed by an organism can be referred to as
Trả lời
(C)
Traits
14
One of the following is a process of transmission of hereditary characteristics by chromosomes
Trả lời
(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
Trả lời
(B)
Implantation
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?
Trả lời
(A)
Cowper's gland
17
The part labelled a in the above diagram is used for
Trả lời
(C)
Gaseous exchange
18
The above organism can be classified under which phylum in the animal kingdom
Trả lời
(B)
Chordata
19
One important characteristics of green plant is that they
Trả lời
(C)
Are autotropic
20
A virus can sometimes be regarded as a living organism because it
Trả lời
(D)
Reproduces in living cells
21
A population is best described as
Trả lời
(A)
A group of the same species of organisms living together
22
The number of times an organism occurs within a given area of a habitat is referred to as
Trả lời
(B)
Population frequency
23
Reading the verdict of a case by a magistrate is an example of
Trả lời
(D)
A voluntary action
24
Which of the following structures controls the activities of the living cell?
Trả lời
(A)
Nucleus
25
Which of the following are components of glomerular filtrate?
Trả lời
(C)
All the components of blood except plasma protein and cells
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
Trả lời
(D)
Organic Evolution
27
The specific portion of a habitat which is occupied by a particular species is referred to as
Trả lời
(B)
Ecological niche
28
In plants, respiration occurs in
Trả lời
(C)
All living cells
29
Which of the following is an example of discontinuous variation?
Trả lời
(B)
Offsprings including two male cats and three female cats
30
Which of the following type of soil has the highest water retaining capacity?
Trả lời
(C)
Clay
31
Rabbits cannot survive in an aquatic habitat because they have
Trả lời
(B)
no gills
32
Which of the following substances pass through the root cell membrane by osmosis?
Trả lời
(D)
Water
33
Trees in Savanna habitats usually have thick bark which mainly.
Trả lời
(A)
Reduces the rate of transpiration
34
Competition among individuals of a population increases the
Trả lời
(C)
Survival of the fittest
35
In natural selection, Darwin proposed that evolution occurred because of the following conditions except
Trả lời
(D)
food and other needs are abundant
36
Which of the following substances has the highest amount of energy in joules per unit weight?
Trả lời
(B)
Fats
37
Which of the following pairs of scientists discovered the Rhesus factor in human blood?
Trả lời
(C)
Landsteiner and Lavine
38
The study of an individual organism or a single species of organism and its environment is
Trả lời
(A)
Autecology
39
Which of the following is a nitrifying bacterium?
Trả lời
(B)
Nictrobacter
40
Which of the following is the effect of using artificial pollination in plant breeding?
Trả lời
(D)
Improvement of the variety of crops
41
Only specially adapted micro-organisms are found in
Trả lời
(A)
Salty water
42
Plants which can survive in extremely dry places are called
Trả lời
(B)
Xerophytes
43
The presence of ______ for swimming in a tad-pole enables it to adapt in an aquatic habitat.
Trả lời
(C)
Tail
44
Possession of thin membrane enables a tapeworm to
Trả lời
(C)
Absorb digested food from the host's intestine to their system
45
Which of the following juices contains the enzyme ptyalin?
Trả lời
(D)
Saliva
46
Which of the following essential substance is contained in vegetable?
Trả lời
(C)
Mineral Salts
47
Good quality food will perform the following functions in human except
Trả lời
(B)
Providing resistance against malaria
48
Which of the following is considered to be the first product of Photosynthesis?
Trả lời
(B)
Starch
49
Which of the blood corpusles are irregular and amoeloid in shape
Trả lời
(A)
Leucocytes
50
Which organ removes the largest quantity of water from the blood?
Trả lời
(C)
Kidney
51
The movement of blood between the heart and all other parts of the body beside the lungs is
Trả lời
(D)
Systemic circulation
52
The change in the genetic make up of an organism resulting in an inheritable characteristics which is new is
Trả lời
(A)
Mutation
53
The organic molecule(s) present in the nucleus is/are
Trả lời
(A)
DNA
54
Albinism is an expression of trait controlled by
Trả lời
(B)
Recessive genes
55
The male sex cells also called gametes are produced in the testes by a process called
Trả lời
(C)
Spermatogenesis
56
Which of the following describes an example of fertilization in higher organisms
Trả lời
(A)
Fusion of sperm and egg nuclei
57
The part labeled III in the above diagram is
Trả lời
(C)
Hyphae
58
The organism above can be found in
Trả lời
(D)
Moist environments
59
The possession of chloroplast in Euglena virids enables it to
Trả lời
(B)
Carry out photosynthesis
60
Viruses are pathogens of the following diseases except
Trả lời
(A)
Tuberculosis
61
The association between two organisms living together in which only one benefits from the association while the other is neither benefited nor harmed is
Trả lời
(C)
Commensalism
62
Which of the following will have the least effect on the rate of change of the numbers in a population
Trả lời
(A)
Mutation
63
Which of the following controls all voluntary actions
Trả lời
(B)
Cerebrum
64
Which of the following statement describes an autonomic nervous system
Trả lời
(D)
It affects glands, cardia muscles and smooth muscles
65
The glomerular filtrate contains the following except
Trả lời
(C)
Blood Corpuscles
66
One of the following is not the theory of natural selection stated by Charles Dawin
Trả lời
(A)
Characteristics acquired through use or disuse are transmitted offspring
67
Ecology is best defined as the study of
Trả lời
(B)
The inter-relationship between living organisms and the environment
68
The following processes are involved during expiration in man except
Trả lời
(B)
The thoracic cavity first increases in volume
69
Which of the following is an example of continous variation?
Trả lời
(D)
Height in humans
70
One of the following is an effect of clay soil on vegetation
Trả lời
(B)
Supports scanty vegetation
71
Which of the following factors is not considered in a terrestial habitat?
Trả lời
(D)
Turbidity
72
What type of vertebrate assists in breathing alongside with the ribs?
Trả lời
(C)
Thoracic
73
Which of the following statement is correct about Southern Guinea Savanna in Nigeria
Trả lời
(A)
It is the largest of all the biotic community in Nigeria
74
In an ecosystem, the organism which changes light energy into stored chemical energy is the
Trả lời
(B)
Producer
75
In the theory of use and disuse Lamarck proposed that evolution occurred because of the following except
