2006 - WAEC Biology Past Questions and Answers - page 3
21
Which of the following conditions is responsible for the presence of sugar in the blood of diabetic patients?
A
High intake of carbohydrates
B
Low production of insulin
C
Low intake of carbohydrates
D
High production of insulin
correct option: b
Users' Answers & Comments22
The central nervous system in humans is made up of the
A
brain, medulla oblongata and nerves
B
brain, spinal cord and cranial nerves
C
brain and spinal nerves
D
brain and spinal cord
correct option: d
Users' Answers & Comments23
The part of the ear in mammals responsible for the detection of sound is the
A
utriculus
B
tympanum
C
cochlea
D
semi-circular canal
correct option: c
Users' Answers & Comments24
Which of the following statements best describes pollination? The transfer of pollen grain from
A
anther to stigmas
B
stigmas to stamens
C
the anther of a flower to the stigma of another flower of a different species
D
anther to the ovary
correct option: a
Users' Answers & Comments25
Which of the following vertebrae provide articulating surfaces for the ribs?
A
Thoracic
B
Lumbar
C
Cervical
D
Sacral
correct option: a
Users' Answers & Comments26
Which of the following is not a component of the appendicular skeleton?
A
Ulna
B
Atlas
C
Femur
D
Pelvic girdle
correct option: b
Users' Answers & Comments27
If the mucus in the air track of mammals dry up and the hairs in the nostrils are removed
A
impure air would be breathed into their lungs
B
the speed of air movement into their lungs would increase
C
breathing air into their lungs would be difficult
D
more air would be taken into their lungs
correct option: a
Users' Answers & Comments28
A one-seeded fruit in which the pericarp has fused with the seed coat is classified as
A
a berry
B
a caryopsis
C
a legume
D
an achene
correct option: b
Users' Answers & Comments29
Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
Which of the following deficiencies is caused by lack of vitamin A
A
I
B
III
C
V
D
VI
correct option: d
Users' Answers & Comments30
Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
Which of the following vitamins would correct the deficiency numbered V?
A
Vitamin K
B
Vitamin A
C
Vitamin C
D
Vitamin B
correct option: a
Users' Answers & Comments