The organelle common to both plant and animal cells is the
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(A)
centrioles
2
Which of the following is likely to have a higher concentration of the mitochondria?
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(A)
Sperm cell
3
The hyphal wall of fungi is rigid owing to the
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(D)
chitin
4
Angiosperms and gymnosperms belong to the class
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(B)
spermatophyta
5
An example of radially symmetric organism is
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(B)
Hydra
6
The leech and the earthworm belong to the
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(D)
annelids
7
I. Rattus rattus II. Agama agama III. Bufo regularis IV. tilipia zilli
the order of evolutionary advancement to the above vertebrates is
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(D)
IV, III, II, I
8
From the diagram above the angle between the parts labelled II and III is the
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(D)
axil
9
The part of the plant where photosynthesis is least likely to take place is
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(D)
IV
10
The stage in the life history of a moth responsible for the destruction of agricultural crops is the
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(D)
caterpillar
11
The blackfly is a vector of
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(C)
onchocerciasis
12
The transition from amphibians to mammals involves the limb becoming arranged to support the weight more effectively requiring modifications in the
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(B)
pectoral and pelvic girdles
13
The main function of the caudal fin in Tilapia is to
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(A)
propel it forward in water
14
In the root vascular system, the stele is directly surrounded by the
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(C)
endodermis
15
From the diagram above the part labelled IV represents the
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(D)
duodenum
16
From the diagram above, The bile is stored in the part labelled
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(B)
II
17
The only vein that carriers pure oxygenated blood is the
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(B)
pulmonary vein
18
The function of the fluid - filled pericadium is to
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(A)
reduce the friction caused by the pumping movements of the heart
19
The mammalian lung is made air tight by the
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(C)
pleural membrane
20
A test tube containing yeast in glucose solution containing alkaline pyrogallol. The bubbles of carbon (IV) oxide produced indicates that the yeast cells are
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(A)
respiring in the absence of oxygen
21
The urinary tubules of the kidney function through
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(C)
ultrafiltration and selective reabsorption
22
Excess water in plants is excreted as water vapour and droplets respectively through
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(B)
transpiration and guttation
23
When bacteria swim from cold to warm regions this is known as
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(B)
positive thermotaxis
24
Hydrostatic skeleton is the type of supporting system found in
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(C)
oligochaetes
25
From the diagram above the structure labelled I originates from the
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(B)
kidney
26
From the diagram above Birth control by vasectomy is achieved by severing the structure labelled
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(C)
III
27
The main function of the structure labelled I is to
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(A)
store food for the young plant
28
The type of germination illustrated is termed
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(C)
epigeal
29
From the diagram above the structure labelled I is the
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(D)
stapes
30
A function of the part labelled II is to
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(A)
equalize pressure on both sides of the tympanum
31
Which of the following is a homostatic response in humans?
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(D)
shivering in a cold environment
32
From the diagram above the optimal temperature for breeding cockroaches is
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(C)
24oC
33
At which temperature will cockroaches not survive after 10 days
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(A)
15oC
34
Evaporation and transpiration are respectively represented by the components labelled
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(A)
I and II
35
The main reservoir of water in the circle is the
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(D)
ocean
36
The Mambila plateau is a unique Nigerian biome located in
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(C)
Taraba state
37
In Nigeria, the guinea savanna belt borders the
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(B)
rainforests and the sudan savanna
38
The population density of Tridex in an abandoned square farm land of side 200 m was found to be 5 plants per m\(^2\). The population size of the plant on the farm is
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(D)
200000
39
Secondary succession is much faster than primary succession because
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(B)
soil is already present
40
which of the following is used to test for the presence of lime in a soil sample?
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(C)
HCl(aq)
41
The importance of practising crop rotation in agriculture is to
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(A)
maintain soil fertility
42
The recycling method of solid waste disposal is unsuitable for
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(A)
organic matter
43
A non - renewable alternative source of energy is
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(C)
nuclear energy
44
Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents
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(D)
Both parents possess gene for shortness
45
A yellow maize is crossed with a white maize and the first filial generation produce yellow maize only. The white trait is said to exhibit
