Which of the following organisms contains Chlorophyll in its cells?
پاسخ دهید
(C)
Euglena
2
Species are groups of organisms that
پاسخ دهید
(C)
have similar features and can interbreed freely
3
A plant with short, vertical underground stem is a
پاسخ دهید
(B)
corm
4
The diagram above is an illustration of a reproductive process in an organism. Study it and answer ques tions 4 and 5.
The type of reproduction illustrated is
پاسخ دهید
(B)
binary fission
5
The illustrated organism is capable of reproducing by
پاسخ دهید
(D)
sexual and asexual means
6
Which of the following organisms consists of unicellular cells joined to form a filament?
پاسخ دهید
(B)
Spirogyra
7
The structure in the cell that controls the movement of substances in and out of the cell is the
پاسخ دهید
(A)
cytoplasmic membrane
8
The bursting of a red blood cell placed in a hypotonic solution is called
پاسخ دهید
(B)
haemolysis
9
The function of the root hair in plants is to
پاسخ دهید
(A)
absorb soil water by the process of osmosis.
10
If a germinating seed is attached horizontally to a revolving klinostat, what would be the effect on the seedling after three days? The
پاسخ دهید
(C)
plumule and radicle will not show any curvature.
11
The lumbar vertebra differs from the thoracic vertebra because it possesses a
پاسخ دهید
(C)
thicker centrum.
12
Which of the following blood vessels carries oxygenated blood into the heart?
پاسخ دهید
(C)
Pulmonary vein
13
Filtrates in the Bowman's capsule contain vitamins because
پاسخ دهید
(A)
they have low molecular weight.
14
The structures that contain grey matter and white matter are found in the
پاسخ دهید
(B)
nervous system.
15
The diagram above is an illustration of sense organ in humans. Study it and answer questions 15 and 16.
The part that protects the organ is labelled
پاسخ دهید
(B)
II
16
The part labelled III is the
پاسخ دهید
(B)
pupil
17
The diagram above is an illustration of two plants P and Q. Arrows I, II and III illustrate the transfer of pollen grains among flowers of plants P and Q. Studly it and answer questions 17 and 18.
The types of pollination illustrated as I,Il and III, respectively are
پاسخ دهید
(B)
self, self and cross
18
The condition necessary for reproduction to occur between plants P and Q after pollination is that plants P and Q should be
پاسخ دهید
(A)
of the same species.
19
The diagram above illustrates a dry dehiscent fruit. Use it to answer questions 19 and 20.
The agent of dispersal of the fruit is
پاسخ دهید
(D)
wind
20
The Parachute-like tuft of hairs developed from the
پاسخ دهید
(D)
sepals
21
Which of the following events does not occur in the light reaction stage of photosynthesis?
پاسخ دهید
(B)
Carbon (IV) oxide combines with hydrogen
22
The rate of photosynthesis decreases in a wilted herbaceous plant because the
پاسخ دهید
(D)
amount of carbon dioxide entering the leaf decrease.
23
The element required for chlorophyll formation in plants is
پاسخ دهید
(A)
Iron
24
The process of food digestion in mammals would
پاسخ دهید
(D)
render food substances soluble and absorbable
25
Which of the following food substances would give a negative reaction with Benedict's reagent?
پاسخ دهید
(D)
Sucrose
26
Sunlight is the major source of
پاسخ دهید
(A)
Vitamin D
27
Discouraging the use of poison to kill fish in a large water body is a way of
پاسخ دهید
(B)
conserving the fish species.
28
The pathway through which nutrient are replenished and circulated in an ecosystem is called a
پاسخ دهید
(A)
cycle
29
The illustration below is a food chain. Study it and answer questions 29 and 30. Grasses → Grasshoppers → Lizards → Hawks
Which of the following statements is not correct about the food chain? The number of
پاسخ دهید
(B)
grasses eaten by grasshoppers is fewer than the number of grasshoppers.
30
Grasses → Grasshoppers → Lizards → Hawks
If the individual species of organisms in the food chain are counted and arranged as a pyramid, the result would be a pyramid of
پاسخ دهید
(A)
numbers
31
Which of the following gases is released during the decomposition of organic matter?
پاسخ دهید
(C)
Hydrogen Sulphide
32
The diagrams above are the illustrations of organisms from different habitat. Study them and answer questions 32 and 33.
The structures labelled I are for
پاسخ دهید
(C)
Physical defence
33
Habitats of the organisms respectively are
پاسخ دهید
(D)
garden and desert
34
An environmental problem caused by Sulphur (IV) oxide is
پاسخ دهید
(A)
acid rain
35
The phenomenon by which a farmland that is left to fallow for several years develops into a forest is called
پاسخ دهید
(A)
Succession
36
A farmer planted many seeds on a small piece of land. The plants that germinated are as shown above.
Which of the following effects would not be observed among the population of the plants?
پاسخ دهید
(C)
Mutualistic relationship
37
The bar chart above shows the data of sources of energy used for cooking in a community. Study it and answer questions 37 and 38.
The source of energy that is mostly used in the community is
پاسخ دهید
(B)
Kerosene
38
The two sources of energy that would mostly lead to pollution in the community are
پاسخ دهید
(C)
kerosene and coal
39
An individual found a strange bird that is tagged as an endangered specie. What should the individual do?
پاسخ دهید
(C)
Return it to its natural habitat
40
Which of the following traits is not inheritable? Ability to
پاسخ دهید
(D)
roll the eyeball
41
Which of the following statements is correct about the ABO blood group system?
پاسخ دهید
(B)
Antibodies are located in the blood plasma
42
A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
پاسخ دهید
(C)
AB
43
The diagram above is an illustration of genetic cross between two parents. The parental gametes I, II, III and IV gave rise to the offspring below. Study it and answer questions 43 and 44.
Gametes I, II, III and IV, respectively are
پاسخ دهید
(B)
T, t, t, and t
44
Which of the following statements is correct about the cross?
پاسخ دهید
(C)
The female is homozygous
45
The physical appearance of an organism is described as its
