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Free JAMB Past Question for biology
Q.1The adaptations for obtaining food are examined in the mouth-parts of insects such as the:
Options:
A. Stick insect
B. Praying mantis
C. Butterfly
D. Toad
The adaptations for obtaining food are examined in the mouth-parts of insects such as the:
Options:
A. Stick insect
B. Praying mantis
C. Butterfly
D. Toad
Correct Answer: option c
Further reading: Adaptations for Obtaining Food
Show explanation
The mouthparts of insects, especially the mosquito, butterfly, and moth, are structural adaptations for obtaining food
Q.2A medical application of the principles of heredity is in:
A. Plant breeding
B. Gene therapy
C. In-breeding
D. Marriage counseling
A medical application of the principles of heredity is in:
A. Plant breeding
B. Gene therapy
C. In-breeding
D. Marriage counseling
Correct Answer: option d
Further reading: Application of Heredity in Medicine
Show explanation
Applying the knowledge of heredity is used in marriage counseling, particularly concerning blood grouping, sickle-cell anemia, and Rhesus factors
Q.3The application of discontinuous variation is useful in:
A. Measuring height and weight
B. Crime detection
C. Observing colour patterns
D. Plotting frequency distribution graphs
The application of discontinuous variation is useful in:
A. Measuring height and weight
B. Crime detection
C. Observing colour patterns
D. Plotting frequency distribution graphs
Correct Answer: option b
Further reading: Application of Discontinuous Variation
Show explanation
Discontinuous variation can be used in crime detection
Q.4A non-living factor affecting the distribution of organisms is:
A. Competition
B. Predation
C. Rainfall
D. Symbiosis
A non-living factor affecting the distribution of organisms is:
A. Competition
B. Predation
C. Rainfall
D. Symbiosis
Correct Answer: option c
Further reading: Abiotic Factors
Show explanation
Rainfall is an abiotic factor that affects the distribution of organisms, along with temperature, relative humidity, and wind speed
Q.5The respiratory surface in an earthworm is the:
A. Gill
B. Body surface
C. Trachea
D. Stomata
The respiratory surface in an earthworm is the:
A. Gill
B. Body surface
C. Trachea
D. Stomata
Correct Answer: option b
Further reading: Respiratory Organs and Surfaces
Show explanation
The body surface is a respiratory organ, along with gills, tracheae, lungs, stomata, and lenticels. Earthworms use their body surface for gas exchange.
Q.6A plant showing a deficiency symptom of nitrogen would likely exhibit symptoms similar to a deficiency in:
A. Calcium
B. Potassium
C. Sulfur
D. Magnesium
A plant showing a deficiency symptom of nitrogen would likely exhibit symptoms similar to a deficiency in:
A. Calcium
B. Potassium
C. Sulfur
D. Magnesium
Correct Answer: option b
Further reading: Plant Mineral Requirements
Show explanation
Candidates are expected to recognize the deficiency symptoms of nitrogen, phosphorus, and potassium
Q.7An experiment to demonstrate the necessity of photosynthesis would test for the presence of:
A. Carbon (IV) oxide
B. Oxygen
C. Chlorophyll
D. Starch
An experiment to demonstrate the necessity of photosynthesis would test for the presence of:
A. Carbon (IV) oxide
B. Oxygen
C. Chlorophyll
D. Starch
Correct Answer: option d
Further reading: Photosynthesis Requirements
Show explanation
Detecting the presence of starch in a leaf is an evidence of photosynthesis
Q.8An invertebrate belonging to the phylum Arthropoda is:
A. Hydra
B. Earthworm
C. Snail
D. Cockroach
An invertebrate belonging to the phylum Arthropoda is:
A. Hydra
B. Earthworm
C. Snail
D. Cockroach
Correct Answer: option d
Further reading: Animalia (Arthropoda)
Show explanation
Cockroaches, along with mosquitoes, houseflies, bees, and butterflies, are listed as examples of Arthropoda
Q.9Which of the following is a medium of transportation in a multicellular animal?
A. Cell sap
B. Cytoplasm
C. Blood
D. Turgor pressure
Which of the following is a medium of transportation in a multicellular animal?
A. Cell sap
B. Cytoplasm
C. Blood
D. Turgor pressure
Correct Answer: option c
Further reading: Media of Transportation
Show explanation
Blood is a medium of transportation in organisms, along with cytoplasm, cell sap, and lymph.
Q.10Which of the following factors contributes to the loss of soil fertility?
A. Crop rotation
B. Use of organic fertilizers
C. Leaching
D. Terracing
Which of the following factors contributes to the loss of soil fertility?
A. Crop rotation
B. Use of organic fertilizers
C. Leaching
D. Terracing
Correct Answer: option c
Further reading: Loss of Soil Fertility
Show explanation
Factors such as leaching, erosion of the topsoil, and repeated cropping with one variety contribute to the loss of soil fertility
Q.11The physical properties of soil types are identified based on the measurement of particle size, porosity, or:
A. Organic content
B. Water retention ability
C. Soil air
D. Mineral content
The physical properties of soil types are identified based on the measurement of particle size, porosity, or:
A. Organic content
B. Water retention ability
C. Soil air
D. Mineral content
Correct Answer: option b
Further reading: Soil Types
Show explanation
Physical properties of soil types are identified based on measurements of particle size, porosity, or water retention ability
Q.12Which of the following is an example of a non-heritable character?
A. Eye colour
B. Height
C. Tattoo
D. Blood group
Which of the following is an example of a non-heritable character?
A. Eye colour
B. Height
C. Tattoo
D. Blood group
Correct Answer: option c
Further reading: Heredity
Show explanation
Candidates are expected to determine heritable and non-heritable characters. A tattoo is an acquired trait and not a heritable character
Q.13The theory of organic evolution as the sum total of all adaptive changes over a long period of time, resulting in the diversity of forms, structure, and functions, is a concept to which both Lamarck and Darwin contributed. Which of the following is an example of Lamarck's theory?
A. Survival of the fittest
B. Inheritance of acquired characteristics
C. Natural selection
D. Genetic mutation
The theory of organic evolution as the sum total of all adaptive changes over a long period of time, resulting in the diversity of forms, structure, and functions, is a concept to which both Lamarck and Darwin contributed. Which of the following is an example of Lamarck's theory?
A. Survival of the fittest
B. Inheritance of acquired characteristics
C. Natural selection
D. Genetic mutation
Correct Answer: option b
Further reading: Theories of Evolution
Show explanation
Candidates should examine the contributions of Lamarck and Darwin to the theory of evolution. Lamarck's theory is known for the inheritance of acquired characteristics, while Darwin's theory is based on natural selection.
Q.14Air, water, and soil are categories of:
A. Resources
B. Biomes
C. Pollution
D. Habitats
Air, water, and soil are categories of:
A. Resources
B. Biomes
C. Pollution
D. Habitats
Correct Answer: option c
Further reading: Pollution
Show explanation
Pollution is categorized into air, water, and soil pollution
Q.15A mangrove swamp is an example of what type of natural habitat?
A. Terrestrial habitat
B. Aquatic habitat
C. Arboreal habitat
D. Savannah
A mangrove swamp is an example of what type of natural habitat?
A. Terrestrial habitat
B. Aquatic habitat
C. Arboreal habitat
D. Savannah
Correct Answer: option b
Further reading: Natural Habitats
Show explanation
Ponds, streams, lakes, seashores, and mangrove swamps are examples of aquatic habitats
Q.16The process of succession that begins in an area where no previous community existed is called:
A. Secondary succession
B. Primary succession
C. Climax community
D. Population growth
The process of succession that begins in an area where no previous community existed is called:
A. Secondary succession
B. Primary succession
C. Climax community
D. Population growth
Correct Answer: option b
Further reading: Ecological Succession
Show explanation
Primary succession is a type of ecological succession. It describes the sequence of change in an environment with no previous life.
Q.17The regulation of body temperature, salt, and water levels in the body is a process known as:
A. Co-ordination
B. Respiration
C. Homeostasis
D. Excretion
The regulation of body temperature, salt, and water levels in the body is a process known as:
A. Co-ordination
B. Respiration
C. Homeostasis
D. Excretion
Correct Answer: option c
Further reading: Homeostasis
Show explanation
Homeostasis includes the regulation of body temperature and the regulation of salt and water
Q.18The chemical process of glycolysis and the Kreb's cycle, which are part of respiration, are linked by the role of:
A. Carbon dioxide
B. Oxygen
C. ATP
D. Lactic acid
The chemical process of glycolysis and the Kreb's cycle, which are part of respiration, are linked by the role of:
A. Carbon dioxide
B. Oxygen
C. ATP
D. Lactic acid
Correct Answer: option c
Further reading: Respiration
Show explanation
The significance of respiration is examined with reference to the role of ATP in glycolysis and the Kreb's cycle
Q.19Which of the following cycles is a type of nutrient cycling in nature?
A. Sulphur cycle
B. Phosphorus cycle
C. Carbon cycle
D. Oxygen cycle
Which of the following cycles is a type of nutrient cycling in nature?
A. Sulphur cycle
B. Phosphorus cycle
C. Carbon cycle
D. Oxygen cycle
Correct Answer: option c
Further reading: Nutrient Cycling
Show explanation
The carbon, water, and nitrogen cycles are listed under nutrient cycling in nature
Q.20Which of these endocrine glands is responsible for producing hormones that regulate blood sugar levels?
A. Pituitary
B. Adrenal gland
C. Pancreas
D. Thyroid
Which of these endocrine glands is responsible for producing hormones that regulate blood sugar levels?
A. Pituitary
B. Adrenal gland
C. Pancreas
D. Thyroid
Correct Answer: option b
Further reading: Hormonal Control (Animals)
Show explanation
The pancreas is an endocrine gland that produces hormones that regulate the levels of materials inside the body