The organelle common to both plant and animal cells is the
回答
(A)
centrioles
2
Which of the following is likely to have a higher concentration of the mitochondria?
回答
(A)
Sperm cell
3
The hyphal wall of fungi is rigid owing to the
回答
(D)
chitin
4
Angiosperms and gymnosperms belong to the class
回答
(B)
spermatophyta
5
An example of radially symmetric organism is
回答
(B)
Hydra
6
The leech and the earthworm belong to the
回答
(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
回答
(D)
IV, III, II, I
8
From the diagram above the angle between the parts labelled II and III is the
回答
(D)
axil
9
The part of the plant where photosynthesis is least likely to take place is
回答
(D)
IV
10
The stage in the life history of a moth responsible for the destruction of agricultural crops is the
回答
(D)
caterpillar
11
The blackfly is a vector of
回答
(C)
onchocerciasis
12
The transition from amphibians to mammals involves the limb becoming arranged to support the weight more effectively requiring modifications in the
回答
(B)
pectoral and pelvic girdles
13
The main function of the caudal fin in Tilapia is to
回答
(A)
propel it forward in water
14
In the root vascular system, the stele is directly surrounded by the
回答
(C)
endodermis
15
From the diagram above the part labelled IV represents the
回答
(D)
duodenum
16
From the diagram above, The bile is stored in the part labelled
回答
(B)
II
17
The only vein that carriers pure oxygenated blood is the
回答
(B)
pulmonary vein
18
The function of the fluid - filled pericadium is to
回答
(A)
reduce the friction caused by the pumping movements of the heart
19
The mammalian lung is made air tight by the
回答
(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
回答
(A)
respiring in the absence of oxygen
21
The urinary tubules of the kidney function through
回答
(C)
ultrafiltration and selective reabsorption
22
Excess water in plants is excreted as water vapour and droplets respectively through
回答
(B)
transpiration and guttation
23
When bacteria swim from cold to warm regions this is known as
回答
(B)
positive thermotaxis
24
Hydrostatic skeleton is the type of supporting system found in
回答
(C)
oligochaetes
25
From the diagram above the structure labelled I originates from the
回答
(B)
kidney
26
From the diagram above Birth control by vasectomy is achieved by severing the structure labelled
回答
(C)
III
27
The main function of the structure labelled I is to
回答
(A)
store food for the young plant
28
The type of germination illustrated is termed
回答
(C)
epigeal
29
From the diagram above the structure labelled I is the
回答
(D)
stapes
30
A function of the part labelled II is to
回答
(A)
equalize pressure on both sides of the tympanum
31
Which of the following is a homostatic response in humans?
回答
(D)
shivering in a cold environment
32
From the diagram above the optimal temperature for breeding cockroaches is
回答
(C)
24oC
33
At which temperature will cockroaches not survive after 10 days
回答
(A)
15oC
34
Evaporation and transpiration are respectively represented by the components labelled
回答
(A)
I and II
35
The main reservoir of water in the circle is the
回答
(D)
ocean
36
The Mambila plateau is a unique Nigerian biome located in
回答
(C)
Taraba state
37
In Nigeria, the guinea savanna belt borders the
回答
(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
回答
(D)
200000
39
Secondary succession is much faster than primary succession because
回答
(B)
soil is already present
40
which of the following is used to test for the presence of lime in a soil sample?
回答
(C)
HCl(aq)
41
The importance of practising crop rotation in agriculture is to
回答
(A)
maintain soil fertility
42
The recycling method of solid waste disposal is unsuitable for
回答
(A)
organic matter
43
A non - renewable alternative source of energy is
回答
(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
回答
(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
