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Biology
UTME / JAMB 2020
Variety of Organisms & Classification of Living Things
Solution
For growth to occur in organisms, the rate of
A
anabolism must exceed that of catabolism
B
catabolism must exceed that of anabolism
C
food storage must be low
D
food storage must be high
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Anabolism centers around growth and building the organization of molecules. In this process, small, simple molecules are built up into larger, more complex ones while Catabolism is what happens when you digest food and the molecules break down in the body for use as energy.
Source: Myschool Past Questions Archive (Record #56828)
Biology
UTME / JAMB 2020
Variation & Genetics (Heredity)
The probability of a baby being a boy or a girl depends on the contribution of the
A
father's sex cells
B
father's stomatic chromosome
C
mother's sex cell
D
mother's X-chromosome
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 #56833)
Biology
UTME / JAMB 2020
Variety of Organisms & Classification of Living Things
The smallest living organism which share the characteristics of both living and non-living matter are
A
bacteria
B
fungi
C
viruses
D
protozoa
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 #56786)
Biology
UTME / JAMB 2020
Cell & Its Environment (Diffusion, Osmosis & Transport)
Solution
The process by which a red blood cell placed in distilled water absorbs water until it burst and realease it's content into the surrounding is known as
A
osmosis
B
plasmolysis
C
turgidity
D
hemolysis
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Your body normally destroys old or faulty red blood cells in the spleen or other parts of your body through a process called hemolysis
Source: Myschool Past Questions Archive (Record #56788)
Biology
UTME / JAMB 2020
Respiration & Gaseous Exchange
Solution
Which of the following waste products in plants is excreted through the stomata and lenticles?
A
carbon dioxide
B
alkaloids
C
tannins
D
anthoocyanins
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
The waste products of a plant are carbon dioxide, water vapour and oxygen.
Plants produce several waste products, including:
Organic by-products:These include gums, oils, latex, and resins, which plants store in their barks, stems, and leaves
Carbon dioxide: A waste product of respiration, which plants exhale through stomata in their leaves
Water vapour: A waste product of respiration, which plants exhale through stomata in their leaves and the surfaces of their fruits and stems
Oxygen:A waste product of photosynthesis, which plants exhale through stomata in their leaves
Source: Myschool Past Questions Archive (Record #56789)
Biology
UTME / JAMB 2020
Supporting Tissues & Skeletal System
Diagram
Solution
Use the diagram to answer the question
The vertebra illustrated is
Attached Figure / Diagram
A
lumber
B
thoracic
C
caudal
D
cervical
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
There are five different vertebrae namely; cervical, Thoracic, Lumbar, sacral, and caudal.
Thoracic vertebra; it is found in the chest region.
Source: Myschool Past Questions Archive (Record #56792)
Biology
UTME / JAMB 2020
Variety of Organisms & Classification of Living Things
Diagram
Use the diagram to answer the question
The neural arch is labelled
Attached Figure / Diagram
A
i
B
ii
C
iii
D
iv
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 #56793)
Biology
UTME / JAMB 2020
Variation & Genetics (Heredity)
Both recesssive and dominant characters are found
A
on different chromosome in the cell
B
at the same logus of a homologous chromosome
C
at a different loci of a homologous chromosome
D
on the same chromatid in a chromosome
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 #56835)
Biology
UTME / JAMB 2020
Variation & Genetics (Heredity)
In a population of living things, the parameters of size, height, weight and colours are examples of
A
continuous variation
B
non-heritable variation
C
discontinuous variation
D
physiological variation
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 #56837)
Biology
UTME / JAMB 2020
Cell & Its Environment (Diffusion, Osmosis & Transport)
Diagram
Solution
Use the diagram to answer the question.
The process of water loss and intake indicated by the arrows labelled i and ii are respectively
Attached Figure / Diagram
A
evaporation and osmosis
B
osmosis and exhalation
C
osmosis and diffusion
D
urination and diffusion
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Water loss in frogs and toads through the skin primarily occurs through evaporation. Since amphibians like frogs and toads need to keep their skin moist for breathing, they lose water rapidly through the skin surface due to evaporation, particularly when they are in dry environments.
Frogs and toads primarily absorb water through their skin via a process called osmosis; water moves from the surrounding environment (typically with a lower solute concentration) into their bodies through the permeable skin, driven by the concentration gradient between the water and their bodily fluids.
In summary, water loss is by evaporation while water intake is via osmosis. Option A is the correct answer.
Source: Myschool Past Questions Archive (Record #56839)
Biology
UTME / JAMB 2020
Basic Ecological Concepts, Ecosystems & Biomes
The noticeable adaptation of the animal to it's aquatic habitat is the possession of
A
webbed digits
B
four limb
C
wide mouth
D
large eyes
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 #56840)
Biology
UTME / JAMB 2020
Variation & Genetics (Heredity)
Paternity disputes can most accurately be resolved through the use of
A
blood group typing
B
finger printing
C
tongue rolling
D
DNA Analysis
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 #56841)
Biology
UTME / JAMB 2020
Variety of Organisms & Classification of Living Things
Diagram
Use the table below to answer the question.
High relative humidity will be expected in Zones
Attached Figure / Diagram
A
ii and iv
B
ii and iii
C
i and iii
D
i and iv
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 #56843)
Biology
UTME / JAMB 2020
Variety of Organisms & Classification of Living Things
Diagram
Use the table to answer the question.
Which of the zones is likely to be a desert?
Attached Figure / Diagram
A
i
B
ii
C
iii
D
iv
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 #56850)
Biology
UTME / JAMB 2020
Growth, Micro-organisms & Public Health
When bacteria swim from cold to warm regions, this is known as
A
positive phototaxis
B
negative phototaxis
C
positive thermotaxis
D
negative chemotaxis
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 #56851)