Species do not change in order to survive. The environment determines which organism survives to reproduce. These statements
A
explains theory of acquired characters
B
supports Jean Lamarck's theory of use and disuse
C
support the idea of survival of the fittest
D
are refuted by fossil record
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42
Which of the following may not contribute to environmental pollution?
A
Solar energy radiation
B
Industrial waste
C
Waste disposal
D
Smoke
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43
Succession is best described as
A
a process whereby organisms systematically colonize a barren habitat until stable community is formed
B
a process whereby plant occupy a barren habitat until a suitable habitat is formed
C
a process whereby animals occupy a barren habitat until a suitable habitat is formed
D
the subsequent taking over of the land through emigration or dispersal of seeds
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44
Predators are beneficial in pest control because they
A
are natural enemies of small mammals
B
devour farm animals
C
feed on pests of crops
D
prey on game animal
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45
I.Plasmodium II. Vibro Choleroe III. Gonococcus sp IV. Poliomyelitis virus V. Syphilis bacteria
which of the following organism are transmitted by houseflies?
A
I and II only
B
II and V only
C
III and IV only
D
II and IV only
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46
The practice of warming soup regularly as it concerns food preservation is essentially to
A
retain the taste
B
help to break down cellulose
C
remove excess water
D
kill the bacteria in it
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47
Agglutination occurs in blood transfusion when the
A
donor and the recipient belong to the same blood group
B
same antibodies from donor and recipient fuse together
C
donor and the recipient belong to different race
D
recipient is not a universal recipient
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48
Which of the following is not a way of conserving natural resources?
A
controlling farming practice
B
Establishing forest reserve
C
Establishing of parks and gardens
D
Encouraging poaching in game reserve
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49
Which of the following limiting resources is competed for by organism in the desert?
A
Light
B
Temperature
C
Oxygen
D
water
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50
The adaptation for water conservation in organisms include the following except
