How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
Which of the following factors primarily affects the distribution of organisms in an ecosystem?
Wind speed
Soil pH
Temperature
Day length
Correct answer is C
Temperature primarily affects the distribution of organisms in an ecosystem. Temperature is a crucial factor that influences the survival, growth, and reproductive capabilities of organisms. Different species have specific temperature requirements and tolerance ranges.
Which of the following describes the inheritance of traits from parents to offspring
Evolution
Adaptation
Genetics
Natural selection
Correct answer is C
Genetics is the field of biology that studies the inheritance of traits from parents to offspring. Genetics encompasses various concepts and principles, including the study of genes, DNA, chromosomes, genetic inheritance patterns, genetic mutations, and genetic variations.
Which of the following blood vessels carries oxygenated blood away from the heart?
Arteries
Venules
Capillaries
Veins
Correct answer is A
Arteries are blood vessels that carry oxygenated blood away from the heart to various parts of the body.
Organs, tissues, cells, organisms, populations, communities, ecosystems
Cells, organs, tissues, organisms, populations, communities, ecosystems
Tissues, organs, cells, organisms, populations, communities, ecosystems
Cells, tissues, organs, organisms, populations, communities, ecosystems
Correct answer is D
The correct hierarchical organization of life from the smallest to the largest scale is as follows: cells, tissues, organs, organisms, populations, communities, ecosystems.
Which of the following is an example of conserving resources in an ecosystem?
Excessive use of chemical fertilizers in agriculture
Introducing invasive species to an ecosystem
Implementing sustainable fishing practices
Cutting down trees for timber production
Correct answer is C
Implementing sustainable fishing practices is an example of conserving resources in an ecosystem. It identifies a practice that helps in preserving and maintaining the fish populations and the overall health of aquatic ecosystems.
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