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Biology
UTME / JAMB 1989
Variety of Organisms & Classification of Living Things
Which of the following is a dangerous product of coal burning?
A
Sulphur dioxide
B
Carbon dioxide
C
Carbon
D
Nitrogen
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 #4398)
Biology
UTME / JAMB 1989
Basic Ecological Concepts, Ecosystems & Biomes
Solution
5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil?
A
40.0g per 100 g dry soil
B
4.4g per 100g dry soil
C
4.0 g per 100g dry soil
D
0.4g per 100g dry soil
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Mass of soil before drying, M\(_1\) = 5g
Mass of soil after drying, M\(_2\) = 4.8g
Difference in mass,M\(_1\) - M\(_2\) = 5 - 4.8g = 0.2g
Amount of humus in the soil = \(\frac{{M_1} - {M_2}}{M_1}\times 100\)
= \(\frac{0.2}{5}\times 100\)
= 4.0g per 100 dry soil
Source: Myschool Past Questions Archive (Record #4399)
Biology
UTME / JAMB 1989
Population Ecology, Habitats & Conservation
Solution
Most irrigated lands often become unproductive in later years because of
A
loss of fertility
B
increase in salinity
C
soil erosion
D
loss of water
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Disadvantages of irrigation:
- Excess of water in soil leads to water logging
Source: Myschool Past Questions Archive (Record #4400)
Biology
UTME / JAMB 1989
Population Ecology, Habitats & Conservation
Solution
Farmers practise crop rotation because it
A
helps to prevent soil erosion
B
allows two crops to be planted at the same time
C
helps to conserve soil fertility
D
is an alternate to shifting cultivation
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Crop rotation is a practice used to maintain nutrients in agricultural soil
Source: Myschool Past Questions Archive (Record #4401)
Biology
UTME / JAMB 1989
Variety of Organisms & Classification of Living Things
Diagram
Solution
Which of the labelled parts is used for feeling?
Attached Figure / Diagram
A
1
B
2
C
3
D
4
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Butterflies are insects, and like all insects, their bodies are made up of three sections: the head, the thorax, and the abdomen.
Found at the top of the head are the antennae. These sensory organs detect chemicals in the air - to help the butterfly find food or a mate.
Source: Myschool Past Questions Archive (Record #15552)
Biology
UTME / JAMB 1989
Variety of Organisms & Classification of Living Things
Diagram
Solution
The structure labelled 2 is the
Attached Figure / Diagram
A
compound eye
B
ocellus
C
antenna
D
labial palp
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The part labeled 2 is the labial pal
Source: Myschool Past Questions Archive (Record #15553)
Biology
UTME / JAMB 1989
Digestive System & Feeding Mechanisms
Diagram
Which of the structure is the molar?
Attached Figure / Diagram
A
1
B
2
C
3
D
4
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 #15554)
Biology
UTME / JAMB 1989
Reproduction in Plants & Animals
Diagram
What is the function of 3?
Attached Figure / Diagram
A
cutting of large piece of food
B
seizure and tearing of prey
C
Grinding of food
D
Tearing of flesh only
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 #15555)
Biology
UTME / JAMB 1989
Supporting Tissues & Skeletal System
Diagram
The type of joint at the point labeled 5 is the?
Attached Figure / Diagram
A
pivot joint
B
gliding joint
C
ball and socket joint
D
hinge joint
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 #15556)
Biology
UTME / JAMB 1989
Supporting Tissues & Skeletal System
Diagram
Solution
Which of the labeled bone is the ulna?
Attached Figure / Diagram
A
1
B
3
C
4
D
5
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
In the diagram, the ulna is the bone labeled as (3).
Source: Myschool Past Questions Archive (Record #15557)
Biology
UTME / JAMB 1989
Supporting Tissues & Skeletal System
Diagram
Solution
What is the name of the structure labelled 2?
Attached Figure / Diagram
A
Odontoid process
B
Olecranon process
C
Patella
D
Condyle
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
the part labeled 2 is the Olecranon process.
Source: Myschool Past Questions Archive (Record #15558)
Biology
UTME / JAMB 1989
Variety of Organisms & Classification of Living Things
Diagram
In which of the habitats will plants show xeromorphic features most prominently?
Attached Figure / Diagram
A
X
B
R
C
P
D
Q
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 #15559)
Biology
UTME / JAMB 1989
Basic Ecological Concepts, Ecosystems & Biomes
Diagram
Solution
Which ecological factor exerts the greatest influence on the structure of the profiles?
Attached Figure / Diagram
A
Topographic
B
Edaphic
C
Biotic
D
Climatic
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Climate i.e. option D is correct, by climate(climatic factors) such as rainfall and temperature as we move from forest biome to grassland.
Source: Myschool Past Questions Archive (Record #15560)
Biology
WAEC / WASSCE 1989
Variety of Organisms & Classification of Living Things
Solution
Below is a list of the levels of organization in organisms. i. Tissue ii. System iii.Cell iv. Organ
The correct sequence of the levels in an increasing order of complexity is
A
I,II,III
B
III, I, IV, II
C
lll, IV, l, ll
D
lV, lll, I, ll
E
IV, l, ll, lll
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
The levels of organization from cells to organisms are: cells, tissues, organs, systems, and finally the organism. At the most basic level, cells are the smallest unit of life, and they group together to form tissues, which then form organs, and organs work together in organ systems to create a complete, living organism.
Source: Myschool Past Questions Archive (Record #16470)
Biology
WAEC / WASSCE 1989
Cell Structure, Organization & Cell Division
Which of the following organelles is used for locomotion in Paramecium?
A
pseudopodium
B
Trchocyst
C
Cilium
D
pellicle
E
Contractile vacuole
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 #16474)