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Biology
UTME / JAMB 1995
Basic Ecological Concepts, Ecosystems & Biomes
In a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the
A
the primary consumer has more energy than the primary poducer
B
secondary consumer takes up all the energy contents of the primary consumer
C
energy is shared equally between the three groups of organism
D
secondary consumer gets only a small portion of the energy contained in the primary producer
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 #5649)
Biology
UTME / JAMB 1995
Basic Ecological Concepts, Ecosystems & Biomes
In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because
A
it is produced by green plants during photosynthesis
B
it is produced during respiration of animals
C
it is absorbed inn ocean water
D
green plants release it during the day
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 #5651)
Biology
UTME / JAMB 1995
Basic Ecological Concepts, Ecosystems & Biomes
In a tropical rain forest, non-epiphytic ferns and allies occur as
A
middle storey species
B
upper storey species
C
shade-loving species
D
emergent species
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 #5652)
Biology
UTME / JAMB 1995
Population Ecology, Habitats & Conservation
Colonization of a bare rock surface is termed
A
evolution
B
specification
C
primary succession
D
secondary succession
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 #5655)
Biology
UTME / JAMB 1995
Growth, Micro-organisms & Public Health
Which of the following is a measure for the control of bilharzia?
A
Cutting low brushes around homes
B
Application of molluscicides in water bodies
C
Screening windows and doors with mosquito nets
D
Application of herbicides in water bodies
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 #5656)
Biology
UTME / JAMB 1995
Nervous, Hormonal Coordination & Sense Organs
When a healthy shoot of a flowering plant is illuminated from one side, auxins, accumulate on the
A
non-illuminated side of the shoot
B
illuminated side of the shoot
C
upper side of the shoot
D
lower side of the shoot
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 #5624)
Biology
UTME / JAMB 1995
Reproduction in Plants & Animals
Diagram
Solution
The type of placentaion shown is
Attached Figure / Diagram
A
axial
B
marginal
C
parietal
D
central
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Axile placentation is a type of ovule arrangement where ovules are attached to a central, fleshy column within a multi-locular ovary, with partitions (septa) separating the chambers (locules).
Marginal placentation is a type of placentation in which the placenta forms a ridge along the ovary wall, and ovules develop in rows on the ridge.
Parietal placentation is a type of placentation where ovules are attached to the inner wall of the ovary, specifically on the edges of fused carpels, and is commonly found in plants like melons and mustard.
In free central placentation, ovules are borne on a central column within a single-chambered ovary, without partitions connecting the column to the ovary wall, as seen in plants like Dianthus and Primrose.
Source: Myschool Past Questions Archive (Record #5630)
Biology
UTME / JAMB 1995
Reproduction in Plants & Animals
Diagram
Solution
An example of a plant having the placentation shown is
Attached Figure / Diagram
A
allamander
B
hibiscus
C
water lily
D
pride of Barbados
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The placentation type where ovules are attached to the inner margin of the placenta is called marginal placentation. In this type, the ovules develop along the edge of a single carpel, forming a ridge or series of rows.
Pride of Barbados, or Caesalpinia pulcherrima, exhibits marginal placentation. This means the seeds are attached to the placenta along one edge or margin of the fruit. Examples of other fruits with marginal placentation include beans and cowpeas.
Source: Myschool Past Questions Archive (Record #5633)
Biology
UTME / JAMB 1995
Reproduction in Plants & Animals
The term caryopsis is used to describe a fruit in which the
A
testa and pericarp are separate
B
seed and endocarp are fused
C
testa and pericarp are fused
D
seed coat and fruit wall are impermeable
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 #5635)
Biology
UTME / JAMB 1995
Reproduction in Plants & Animals
The sex of a foetus is determined during
A
meiosis
B
copulation
C
fertilization
D
placentation
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 #5637)
Biology
UTME / JAMB 1995
Growth, Micro-organisms & Public Health
Some of the diseases caused by bacteria are
A
tuberculosis, gonorrhoea and syphilis
B
tuberculosis, gonorrhoea and AIDS
C
Poliomyelitis, syphilis and gonorrhoea
D
AIDS, cholera and tuberculosis
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 #5658)
Biology
UTME / JAMB 1995
Population Ecology, Habitats & Conservation
Environmental pollutants which can work through the media of water, soil and air include
A
carbon monoxide
B
noise
C
sulphur(IV)oxide
D
smoke
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 #5660)
Biology
UTME / JAMB 1995
Variation & Genetics (Heredity)
Human height is an example of a feature which depends on both
A
genotype and phenotype
B
genetic and environmental factors
C
mother's genotype and environmental factor
D
phenotipic and environmental factors
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 #5662)
Biology
UTME / JAMB 1995
Growth, Micro-organisms & Public Health
A person with type O blood can donate to a patient with type A because the donor's blood
A
lacks antigens
B
lacks anti-A antibodies
C
lacks anti-B antibodies
D
has both anti-A and anti-B antibodies
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 #5664)
Biology
UTME / JAMB 1995
Variation & Genetics (Heredity)
The DNA molecule is a chain of repeating
A
nucleosides
B
nitrogenous bases
C
sugar phosphates
D
nucleotides
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 #5665)