POST UTME BOWEN UNIVERSITY 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the primary function of the excretory system in humans?
A. Regulation of body temperature
B. Removal of waste products
C. Production of hormones
D. Maintenance of blood pressure
Question 2
A 2-year-old child is diagnosed with a rare genetic disorder that affects the development of the respiratory system. The child's lungs are severely underdeveloped, and the child is unable to breathe without the assis\tance of a ventilator. Which of the following is a characteristic of the child's respiratory system?
A. The child's lungs are overinflated.
B. The child's lungs are underdeveloped.
C. The child's airways are constricted.
D. The child's diaphragm is paralyzed.
Question 3
A 0.50 M solution of HCl is mixed with a 0.50 M solution of NaOH. What is the pH of the resulting solution?
A. 1.0
B. 2.0
C. 3.0
D. 4.0
Question 4
A diagram of a plant cell is shown below. Identify the organelle responsible for photosynthesis.
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Vacuole
Question 5
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells, each with the same number of chromosomes as the parent cell, is called
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis
Question 6
What is the primary function of the mitochondria in a cell?
A. Protein synthesis
B. Cell signaling
C. Energy production
D. Cell division
Question 7
In the context of evolutionary theory, what is the primary mechanism driving the adaptation of populations to changing environments?
A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation
Question 8
The theory of evolution by natural selection, proposed by Charles Darwin, suggests that species evolve over time through the process of
A. mutation and genetic drift
B. gene flow and genetic recombination
C. natural selection and genetic variation
D. artificial selection and genetic engineering
Question 9
A diagram of a plant cell is shown below. Identify the part labeled 'B'.
A. Nucleus
B. Cell Wall
C. Mitochondria
D. Chloroplast
Question 10
A cell is undergoing mitosis. Which stage of mitosis is characterized by the condensation of chromosomes and the formation of the nuclear envelope?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 11
The type of symbiotic relationship in which one organism benefits and the other is harmed is called
A. Mutualism
B. Commensalism
C. Parasitism
D. Amensalism
Question 12
A species of bird has a wing span of 2.5 meters. If the bird is flying at a speed of 50 km/h, what is the power output of its wings?
A. 100 W
B. 500 W
C. 1000 W
D. 2000 W
Question 13
In a human circulatory system, what is the primary function of the xylem?
A. To transport oxygenated blood from the lungs to the body
B. To transport deoxygenated blood from the body to the lungs
C. To transport nutrients and hormones from the digestive system to the body
D. To transport waste products from the body to the excretory system
Question 14
In a desert e\cosystem, what is the primary mechanism of water conservation in plants?
A. CAM photosynthesis
B. C4 photosynthesis
C. Waxy coatings on leaves
D. Deep roots
Question 15
A population of rabbits is introduced to a new island. The population grows rapidly at first, but eventually levels off. What is the likely cause of this phenomenon?
A. The rabbits are competing with each other for resources
B. The rabbits are being controlled by a predator
C. The rabbits are experiencing a lack of food and water
D. The rabbits are adapting to their new environment

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