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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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