1991 - WAEC Biology Past Questions and Answers - page 5
41
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
correct option: c
Users' Answers & Comments42
Which of the following may not contribute to environmental pollution?
A
Solar energy radiation
B
Industrial waste
C
Waste disposal
D
Smoke
correct option: c
Users' Answers & Comments43
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
correct option: a
Users' Answers & Comments44
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
correct option: c
Users' Answers & Comments45
I.Plasmodium II. Vibro Choleroe III. Gonococcus sp IV. Poliomyelitis virus V. Syphilis bacteria
which of the following organism are transmitted by houseflies?
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
correct option: d
Users' Answers & Comments46
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
correct option: d
Users' Answers & Comments47
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
correct option: e
Users' Answers & Comments48
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
correct option: d
Users' Answers & Comments49
Which of the following limiting resources is competed for by organism in the desert?
A
Light
B
Temperature
C
Oxygen
D
water
correct option: d
Users' Answers & Comments50
The adaptation for water conservation in organisms include the following except
A
scales in fishes
B
scales on leaves
C
thick leaves
D
spine in plants
correct option: a
Users' Answers & Comments