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Biology WAEC / WASSCE 2002 Respiration & Gaseous Exchange
Which of the following does not occur during inhalation in mammals?
A
Rib cage is raised up
B
Diaphragm contracts and becomes dome shaped
C
Inter-coastal muscle contracts
D
Volume of the thoracic cavity increases.
medium Difficulty
Biology WAEC / WASSCE 2002 Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The oxygen released during photosynthesis is obtained
A
from the catalytic splitting of carbon-dioxide in plant tissues
B
from the breakdown of glucose molecules in cells
C
during the photolysis of water using energy trapped in chlorophyll
D
by the excretion of excess oxygen in plant tissues
medium Difficulty
Biology WAEC / WASSCE 2002 Cell & Its Environment (Diffusion, Osmosis & Transport)
In which of the following processes in mammals is liquid passed from blood capillaries to Bowman‘s capsule?
A
Filtration
B
Diffusion
C
Osmosis
D
Reabsorption
medium Difficulty
Biology WAEC / WASSCE 2002 Nervous, Hormonal Coordination & Sense Organs
Adrenalin is considered as a hormone for “fright and flight” because it
A
controls the fluid content of the body
B
is used in protein metabolism
C
plays a role in the pH balance of the body fluids
D
prepares the body for action.
medium Difficulty
Biology WAEC / WASSCE 2002 Excretion & Homeostasis
Which of the following organs in humans is responsible for the removal of excess water?
A
The spleen
B
The kidney
C
Large intestine
D
Small intestine
medium Difficulty
Biology WAEC / WASSCE 2002 Nervous, Hormonal Coordination & Sense Organs
In humans, which of the following pairs of hormones correspond to male and female respectively?
A
Oestroqen and adrenalin
B
Progesterone and testosterone
C
Testosterone and oestrogen
D
Adrenalin and progesterone
medium Difficulty
Biology WAEC / WASSCE 2002 Nervous, Hormonal Coordination & Sense Organs
If the cerebellum of a person is slightly damaged, which of the following will be impaired?
A
vision
B
Walking
C
Breathing
D
Digestion
medium Difficulty
Biology WAEC / WASSCE 2002 Nervous, Hormonal Coordination & Sense Organs
The structure of the ear that is responsible for balancing is the
A
semi-circular carnals
B
pinna
C
auditory nerve
D
fenestra ovalis
medium Difficulty
Biology WAEC / WASSCE 2002 Nervous, Hormonal Coordination & Sense Organs
When a person moves from a darkroom into bright light, the pupil becomes
A
red
B
larger
C
white
D
smaller
medium Difficulty
Biology WAEC / WASSCE 2002 Reproduction in Plants & Animals
Which of the following is not an example of entomophilous flower?
A
Hibiscus
B
Flamboyant
C
Guinea grass
D
AlIamanda
medium Difficulty
Biology WAEC / WASSCE 2002 Reproduction in Plants & Animals
In flowering plants, fertilization would occur when
A
the pollen grows downwards penetrating the style
B
a pollen grain is transferred to the stigma
C
one of the nuclei inside the pollen tube fuses with the ovum
D
the nucleus of the pollen tube divides
medium Difficulty
Biology WAEC / WASSCE 2002 Reproduction in Plants & Animals
After fertilization in the flowering plants, the zygote develops into the
A
plumule
B
radicle
C
cotyledon
D
embryo
medium Difficulty
Biology WAEC / WASSCE 2002 Basic Ecological Concepts, Ecosystems & Biomes
Which of the following processes removes water from the water cycle?
A
Condensation
B
Perspiration
C
Photosynthesis
D
Transpiration
medium Difficulty
Biology WAEC / WASSCE 2002 Digestive System & Feeding Mechanisms
The importance of practising crop-rotation in agriculture is to
A
control soil erosion
B
maintain the fertility of the soil
C
improve the nutritional value of crops
D
ensure growth of cash crops
medium Difficulty
Biology WAEC / WASSCE 2002 Basic Ecological Concepts, Ecosystems & Biomes
In any food chain, the first member must be a
A
carnivore
B
herbivore
C
zooplankton
D
autotroph
medium Difficulty
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