2023 - JAMB Biology Past Questions and Answers - page 1
Which of the following is the most inclusive level of classification in the Linnaean system?
Kingdom
Domain
Class
Phylum
Which of the following is a method of asexual reproduction in plants?
Pollination
Vegetative propagation
Seed dispersal
Fertilization
Which of the following is the primary organ involved in gas exchange during respiration in humans?
Diaphragm
Bronchi
Lungs
Trachea
Which of the following statements about the heart is true?
The heart is responsible for the production of red blood cells
The heart pumps oxygenated blood to the lungs
The heart receives blood from the kidneys and filters waste products
The heart is a muscular organ that contracts to circulate blood throughout the body
Which of the following characteristics is typical of the phylum Arthropoda?
Radial symmetry
Closed circulatory system
Endoskeleton made of bones
Presence of a segmented body
Which process in the nutrient cycle converts atmospheric nitrogen into a form that plants can utilize?
Denitrification
Nitrogen fixation
Ammonification
Nitrification
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
II and III are correct
I and II are correct
I, II, III and IV are correct
III and IV are correct
A biome characterized by hot summer, warm winter and treeless vegetation is
Steppe grasslands
Temperate deserts
Savannah grassland
Tropical deserts
Which of the following describes the inheritance of traits from parents to offspring?
Adaptation
Evolution
Natural selection
Genetics
Which of the following options correctly identifies excretory organs in animals?
Stomach, intestines, and bladder
Lungs, kidneys, and skin
Brain, spinal cord, and nerves
Heart, liver, and spleen