Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
In a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the
Athe primary consumer has more energy than the primary poducer
Bsecondary consumer takes up all the energy contents of the primary consumer
Cenergy is shared equally between the three groups of organism
Dsecondary consumer gets only a small portion of the energy contained in the primary producer
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Question 42
jamb1995
The depth of illumination in a water body can be measured with a
Aphotometer
Bsecchi disc
Chydrometer
Danemometer
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Question 43
jamb1995
Which of the following ions is involved in the conduction of the nerve impulse?
ACa2+
BK+
CH+
DMg2+
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Question 44
jamb1995
The gland directly affecting metabolic rate, growth and development is known as
Aadrenal land
Bthyroid gland
Cmammary gland
Dparathyroid gland
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Question 45
jamb1995
The process of walking is under the control of the part of the brain called
Aoptic lobe
Bolfactory lobe
Ccerebellum
Dmedulla oblongata
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Question 46
jamb1995
Biological growth refers strictly to an increase in the
Aprotoplasm of an organism
Bnumber of organisms
Csize of an organism
Ddevelopment of form
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Question 47
jamb1995
The sex of a foetus is determined during
Ameiosis
Bcopulation
Cfertilization
Dplacentation
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Question 48
jamb1995
The term caryopsis is used to describe a fruit in which the
Atesta and pericarp are separate
Bseed and endocarp are fused
Ctesta and pericarp are fused
Dseed coat and fruit wall are impermeable
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Question 49
jamb1995
An example of a plant having the placentation shown is
Aallamander
Bhibiscus
Cwater lily
Dpride of Barbados
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Question 50
jamb1995
The type of placentaion shown is
Aaxial
Bmarginal
Cparietal
Dcentral
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Question 51
jamb1995
When a healthy shoot of a flowering plant is illuminated from one side, auxins, accumulate on the
Anon-illuminated side of the shoot
Billuminated side of the shoot
Cupper side of the shoot
Dlower side of the shoot
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Question 52
jamb1995
During the bending of the arm, the biceps muscles
Acontracts and the triceps muscles relaxes
Brelaxes and the triceps muscles contracts
Cand the triceps muscles contract
Dand the triceps muscles relax
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Question 53
jamb1995
The excretory structure in the earthworm is the
Amalpighian tubule
Bflame cell
Cnephridium
Dkidney
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Question 54
jamb1995
During respiration, air circulates round plant tissues via the
Alenticels
Bstomata
Cguard cells
Dintercellular spaces
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Question 55
jamb1995
The end product of glycolysis in plants and animals is
Apyruvic acid
Bcitric acid
Caspartic acid
Dmalic acid
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Question 56
jamb1995
Which of following is NOT involved in the transport of substance in the body?
ALymph
BPlasma
CLeucocytes
DErythrocytes
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Question 57
jamb1995
The mammalian organ which acts both as a digestive and as an endocrine organ is the
Aoesophagus
Bliver
Cpancreas
Dspleen
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Question 58
jamb1995
Which vitamin plays an important role in blood clotting?
Avitamin A
BVitamin K
CVitamin B12
DVitamin C
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Question 59
jamb1995
In an experiment to investigate the effect of nitrogen on the growth of plants, the substrate should be a medium of
Awashed sand
Bsaw dust
Ccow dung
Dclay soil
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Question 60
jamb1995
2H2 → 2H2 + O2(g). The equation above represents a part of the light stage of photosynthesis. Which of the following must be presents for this reaction to occur?
