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Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
At which of the following stages of mitosis do the two daughter chromosomes separate completely?
A
Early prophase
B
Telophase
C
Anaphase
D
Late prophase
E
metaphase
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #17212)
Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
Diagram
Which of the following processes is not evident from the drawing?
Attached Figure / Diagram
A
Lining up of the chromosomes at the equatorial plate
B
Centromere attaching a pair of chromatids to a spindle fibre
C
Chromatids held by centromere
D
Absence of nuclear membrane
E
Chromatids moving to the poles
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #17224)
Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
Diagram
Solution
The stage of mitosis represented in the diagram is known as the
Attached Figure / Diagram
A
telophase
B
metaphase
C
anaphase
D
interphase
E
prophase
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Metaphase exist in early and late forms, the diagram shows the early stage of metaphase. During this early stage chromosomes arranged themselves on the equator of the spindle.
Source: Myschool Past Questions Archive (Record #17227)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
Solution
Which of the following is not a function of the mammalian skeleton? It
A
gives the body its shape
B
provides a framework on which internal organs are suspended
C
protects soft and delicate parts of the body
D
provides attachment for muscles
E
contracts and relaxes to bring about movement
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
The four primary functions of the skeletal system are to support muscles and tissue, protect the vital organs, allow movement of bones and muscles and serve as the storage center for immature blood cells and minerals.
Source: Myschool Past Questions Archive (Record #17230)
Biology
WAEC / WASSCE 1990
Supporting Tissues & Skeletal System
Diagram
What type of vertebra is represented in the diagram?
Attached Figure / Diagram
A
Atlas
B
Axis
C
Cervical vertebra
D
Sacrum
E
Lumbar vertebra
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #17240)
Biology
WAEC / WASSCE 1990
Excretion & Homeostasis
The cup-shaped part of the Bowman’s capsule contains
A
nephridium
B
glomerulus
C
loop of Henle
D
nephron
E
convoluted tubule
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #17299)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
The increase in width of blood vessels in the mammalian skin at high temperatures is known as
A
vasodilation
B
sweating
C
vasoconstriction
D
shivering
E
evaporation
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #17301)
Biology
WAEC / WASSCE 1990
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The condition known as cretinism is caused by the deficiency of
A
adrenalin
B
vitamin A
C
insulin
D
thyroxin
E
vitamin C
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #17302)
Biology
WAEC / WASSCE 1990
Nervous, Hormonal Coordination & Sense Organs
Which of the following parts of the mammalian brain is involved in taking the decision to run rather than
walk?
A
Cerebellum
B
Medulla oblongata
C
Cranial nerves
D
Mid brain
E
Cerebrum
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #17303)
Biology
WAEC / WASSCE 1990
Nervous, Hormonal Coordination & Sense Organs
The brain and spinal cord make up the
A
peripheral nervous system
B
automatic nervous system
C
central nervous-system
D
somatic nervous system
E
sympathetic nervous system
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #17305)
Biology
WAEC / WASSCE 1990
Nervous, Hormonal Coordination & Sense Organs
Which of the following is not true about auxins? They
A
are manufactured by plants
B
are used in the site of production
C
are normally present in minute quantities in the cells of plants
D
regulate growth rate of plants
E
regulate direction of growth in plants
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #17306)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
Which of the following stimuli are not perceived through the skin of mammals?
A
Light
B
Pressure
C
Pain
D
Heat
E
Cold
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #17307)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
Which of the following parts of the' tongue does not correspond to the taste indicated against it?
A
Tip-sweet
B
Centre salt
C
Back-sour
D
Side-sour
E
Back-bitter
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #17308)
Biology
WAEC / WASSCE 1990
Reproduction in Plants & Animals
Diagram
The structures labelled III, VI, IV and II respectively represent the
Attached Figure / Diagram
A
uterus, cervix, oviduct and ureter
B
cervix, oviduct, uterus and ureter
C
oviduct, uterus, ureter and cervix
D
vagina, cervix, oviduct and uterus
E
uterus, cervix, ovary and oviduct
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #17313)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
Diagram
The gamete is produced in the structure labelled
Attached Figure / Diagram
A
I
B
II
C
IV
D
VI
E
V
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #17315)