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2023 - JAMB Biology Past Questions and Answers - page 1

1

 

Which of the following is the most inclusive level of classification in the Linnaean system?

A
Kingdom
B
Domain
C
Class
D
Phylum
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2

 

Which of the following is a method of asexual reproduction in plants?

A
Pollination
B
Vegetative propagation
C
Seed dispersal
D
Fertilization
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3

 

Which of the following is the primary organ involved in gas exchange during respiration in humans?

A
Diaphragm
B
Bronchi
C
Lungs
D
Trachea
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4

 

Which of the following statements about the heart is true?

A
The heart is responsible for the production of red blood cells
B
The heart pumps oxygenated blood to the lungs
C
The heart receives blood from the kidneys and filters waste products
D
The heart is a muscular organ that contracts to circulate blood throughout the body
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5

 

Which of the following characteristics is typical of the phylum Arthropoda?

A
Radial symmetry
B
Closed circulatory system
C
Endoskeleton made of bones
D
Presence of a segmented body
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6

 

Which process in the nutrient cycle converts atmospheric nitrogen into a form that plants can utilize?

A
Denitrification
B
Nitrogen fixation
C
Ammonification
D
Nitrification
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7

 

Most fishes do not sink in water because of the presences of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones

A
II and III are correct
B
I and II are correct
C
I, II, III and IV are correct
D
III and IV are correct
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8

 

A biome characterized by hot summer, warm winter and treeless vegetation is

A
Steppe grasslands
B
Temperate deserts
C
Savannah grassland
D
Tropical deserts
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9

 

Which of the following describes the inheritance of traits from parents to offspring?

A
Adaptation
B
Evolution
C
Natural selection
D
Genetics
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10

 

Which of the following options correctly identifies excretory organs in animals?

A
Stomach, intestines, and bladder
B
Lungs, kidneys, and skin
C
Brain, spinal cord, and nerves
D
Heart, liver, and spleen
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