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Biology
WAEC / WASSCE 2001
Variation & Genetics (Heredity)
Solution
Which of the following variations is applicable to a weight lifter?
A
Continuous variation
B
Discontinuous variation
C
Hereditary variation
D
Acquired variation
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Acquired variation refers to changes in an organism's phenotype that occur during its lifetime due to environmental factors, activities, or use and disuse of parts.
For a weightlifter, the increased muscle mass and strength are not inherited from parents; they are developed through the physical activity of lifting weights and specific diet. These traits are categorized as acquired because they are the result of environmental influence (training) rather than being fixed by genetics from birth.
Source: Myschool Past Questions Archive (Record #20096)
Biology
WAEC / WASSCE 2001
Variation & Genetics (Heredity)
The character that expresses itself in the presence of the contrasting characters
A
hybrid
B
allele
C
recessive
D
dominant
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 #20098)
Biology
WAEC / WASSCE 2001
Variety of Organisms & Classification of Living Things
Which of the following animals exhibits territoriality?
A
Bees
B
Bats
C
Lizards
D
Rabbit
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 #20099)
Biology
UTME / JAMB 2001
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
For heterotrophic organisms, competition is least caused by the inadequacy of
A
mates
B
space
C
light
D
nutrients
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Among autotrophs, Light is the major cause of competition because they need sunlight to manufacture their food and survive unlike heterotrophs. Hence,competition is least caused by inadequacy of light.
Source: Official Exam / Past Question Archive
Biology
NECO SSCE 2001
Transport System in Plants & Animals
The blood vessel that supplies blood rich in digested food to the liver is the
A
Hepatic artery
B
Hepatic portal artery
C
Hepatic portal vein
D
Hepatic vein
E
Renal artery
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 #41878)
Biology
NECO SSCE 2001
Cell Structure, Organization & Cell Division
The cell organelle, from which spindle fibers originate during cell division in animal cells is known as
A
Centrosome
B
Chromosome
C
Leucoplast
D
Lysosome
E
Ribosome
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 #41881)
Biology
NECO SSCE 2001
Nervous, Hormonal Coordination & Sense Organs
Which part of the brain regulates and co-ordinates muscular movements?
A
Cerebellum
B
Cerebrum
C
Hypothalamus
D
Medulla oblongata
E
ThaIamus
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 #41882)
Biology
NECO SSCE 2001
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Bacteria; which derive energy by oxidizing certain inorganic compounds, are said to be
A
Chemosynthetic
B
Holozoic
C
Parasitic
D
Photosynthetic
E
Saprophytic
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 #41884)
Biology
NECO SSCE 2001
Variety of Organisms & Classification of Living Things
Which is the most ecologically viable method of insect pest control?
A
Draining all stagnant pools of water
B
Eliminating one of the development stages of the insect
C
Employing a lot of labourers to physically handpick the insect pests
D
Erecting physical barriers against insect pests
E
Using stronger insecticides which can kill a greater number of insect.
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 #41885)
Biology
NECO SSCE 2001
Population Ecology, Habitats & Conservation
Solution
Which is NOT an effect of the food shortage on a population?
A
Cannibalism
B
Competition
C
Increase in mortality
D
Increase in natality
E
migration
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Food shortage could lead to any of the listed options in a bid for survival except an increase in natality rate.
Source: Myschool Past Questions Archive (Record #41886)
Biology
NECO SSCE 2001
Growth, Micro-organisms & Public Health
Which pollutant is likely to cause cholera?
A
agricultural wastes
B
industrial wastes
C
nuclear fallouts
D
oil spillages
E
untreated sewage
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 #41888)
Biology
NECO SSCE 2001
Basic Ecological Concepts, Ecosystems & Biomes
The gradient of land can be measured with an instrument called a/an
A
Aneroid barometer
B
Hygrometer
C
Metre rule
D
Secchi disc
E
Slope gauge
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 #41890)
Biology
NECO SSCE 2001
Nervous, Hormonal Coordination & Sense Organs
What is NOT a reflex action?
A
Blinking of an eye
B
Jerking of the knee
C
Leaning
D
Salivating
E
Sneezing
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 #41891)
Biology
NECO SSCE 2001
Excretion & Homeostasis
Solution
What is NOT a kidney disease?
A
Cirrhosis
B
Kidney stones
C
Nephritis
D
Uraemia
E
Wilm’s tumour
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Cirrhosis is a late stage of scarring of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism.
Source: Myschool Past Questions Archive (Record #41892)
Biology
NECO SSCE 2001
Variation & Genetics (Heredity)
Which is a morphological variation
A
Ability to taste PTC
B
Ability to roll the tongue
C
Behaviour
D
Blood group
E
Finger print
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 #41893)