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Biology
UTME / JAMB 2002
Basic Ecological Concepts, Ecosystems & Biomes
A step in the movement of energy through an ecosystem is a description that best fits the term
A
food chain
B
trophic level
C
pyramid of numbers
D
food web
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 #6842)
Biology
UTME / JAMB 2002
Population Ecology, Habitats & Conservation
Solution
In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m\(^2\) quadrat. What is the density of the plants in the field?
A
1.2 per m2
B
2.4 per m2
C
4.8 per m2
D
9.6 per m2
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
The formula for plant population density is plant population = density \times area. You can also calculate plant population density by dividing the number of plants by the area they cover.
Given:
Plant population(Frequency of water leaf) = 48
Total area sampled = 20 tosses x 2m\(^2\) = 40 m\(^2\)
Density = \(\frac{frequency}{total area sampled}\)
= \(\frac{48}{40}\)
= 1.2 per m\(^2\)
Source: Myschool Past Questions Archive (Record #6844)
Biology
UTME / JAMB 2002
Supporting Tissues & Skeletal System
The supporting tissue in xylem is most poorly developed in
A
mangrove swamp plants
B
grassland plants
C
submerged water plants
D
desert plants
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 #6846)
Biology
UTME / JAMB 2002
Transport System in Plants & Animals
The addition of lime to clayed soil serves to
A
aid water retention
B
close up the texture
C
prevent water logging
D
improve capillary action
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 #6849)
Biology
UTME / JAMB 2002
Basic Ecological Concepts, Ecosystems & Biomes
Solution
The excessive use of agro-chemicals could lead to the pollution of
A
the lithosphere
B
the atmosphere
C
fresh water
D
space
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Agrochemicals may get to water bodies through runoff, leaching, etc, and cause eutrophication.
Source: Myschool Past Questions Archive (Record #6850)
Biology
UTME / JAMB 2002
Basic Ecological Concepts, Ecosystems & Biomes
Solution
In a population study using the transect method, a student is likely to record the highest number of species in?
A
a tropical rain forest
B
a guinea savanna
C
a sahel savanna
D
an estuarine swamp
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
A student using the transect method is most likely to record the highest number of species in a tropical rainforest because it has the highest biodiversity of all the listed ecosystems. While other ecosystems like the guinea savanna are diverse, tropical rainforests are recognized as the most biologically rich ecosystems on Earth.
Source: Myschool Past Questions Archive (Record #6909)
Biology
UTME / JAMB 2002
Adaptation & Evolution
In his theory of evolution, Darwin implied that
A
the struggle for existence among living organisms is sporadic
B
the most successful organisms are those that best adapt to their environment
C
organs of the body which are not regularly used by an organism will disappear
D
any traits acquired by an organism during its lifetime can be passed on its offspring
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 #6912)
Biology
UTME / JAMB 2002
Digestive System & Feeding Mechanisms
Solution
The carnassial teeth of a carnivorous animal consist of the
A
last upper premolar and the first lower molar
B
last upper molar and the last lower molar
C
first upper premolar and the lower molar
D
first upper molar and the first lower molar
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
The carnassial teeth of a carnivorous animal are made up of the fourth upper premolar and the first lower molar.
The carnassial teeth work like scissors to slice through meat, tendons, and muscles.The sharp cusps of the carnassial teeth are able to slice through meat because the inside of the fourth upper premolar closely passes by the outer surface of the first lower molar.
Source: Myschool Past Questions Archive (Record #6916)
Biology
UTME / JAMB 2002
Adaptation & Evolution
Solution
Birds which are large with long straight pointed beaks, long necks and long legs are likely to be
A
insect eaters
B
fish catchers
C
nectar feeders
D
fruit eaters
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Birds that are large with long, straight pointed beaks, long necks, and long legs are fish catchers. these features are well suited for wading in shallow water and catching fish. eg kingfisher, etc.
(Reference material: essential biology by M . C Michael.)
Source: Myschool Past Questions Archive (Record #7187)
Biology
UTME / JAMB 2002
Adaptation & Evolution
A feature of the caste system of bees and termites ia that
A
the workers are sterile
B
the kings are bigger than the queens
C
only the worker perform duties
D
nuptial flight is performed by all members
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 #7188)
Biology
UTME / JAMB 2002
Respiration & Gaseous Exchange
The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles and which is an evidence of their common ancestry is the
A
eye
B
chorion
C
allantois
D
gill-silts
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 #7189)
Biology
UTME / JAMB 2002
Variety of Organisms & Classification of Living Things
Animals aestivate when the environment in which they live becomes
A
hot and dry
B
cold and wet
C
warm and humid
D
windy and snowy
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 #7190)
Biology
UTME / JAMB 2002
Digestive System & Feeding Mechanisms
Solution
Examples of organisms in which extracellular digestion occurs are?
A
fungus, loranthus and housefly
B
rhizopus, sponges and earthworm
C
roundworm, tapeworm and hydra
D
rhizopus, housefly and hydra
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Rhizopus is a fungus and it uses extracellular digestion.
Houseflies digest their food externally by apply a solvent liquid to food particles to dissolve them, and then suck up the liquid food.
Hydra also use extracellular digestion and secrete molecules to break down the substrate they will grow.
Source: Myschool Past Questions Archive (Record #7191)
Biology
UTME / JAMB 2002
Transport System in Plants & Animals
The mammalian erythrocytes differ from the leucocytes at maturity because the erythrocytes are
A
discoid and nucleated
B
discoid and enucleated
C
amoeboid and nucleated
D
amoeboid and enucleated
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 #7192)
Biology
UTME / JAMB 2002
Supporting Tissues & Skeletal System
The presence of endoskeleton is characteristic of
A
invertebrata
B
vertebrata
C
insecta
D
coelenterata
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 #7193)