POST UTME UNIOSUN 2025 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
In a tropical rainforest, the energy flow from producers to primary consumers is typically described by which of the following trophic levels?
Question 2
A diagram of a plant cell is shown below. Identify the organelle labeled 'X'.
Question 3
A 30-year-old woman presents with a 6-month history of progressive weakness and fatigue. Her physical examination reveals a palpable goiter. What is the most likely diagnosis?
Question 4
A 40-year-old man presents with a 1-year history of progressive shortness of breath and fatigue. His chest X-ray shows a large, homogeneous mass in the left lung. What is the most likely diagnosis?
Question 5
In a photosynthetic pathway, which of the following is the primary acceptor of electrons in the light-dep\endent reactions?
Question 6
The process of osmoregulation in animals is primarily controlled by which of the following sense organs?
Question 7
A 35-year-old woman presents with a 2-year history of progressive dyspnea and fatigue. Her chest X-ray shows a large, homogeneous mass in the right lung. What is the most likely diagnosis?
Question 8
The genetic variation in a population is primarily influenced by which of the following mechanisms?
Question 9
A 25-year-old man is brought to the emergency department with a 2-hour history of severe abdominal pain. On examination, his blood pressure is 80/40 mmHg, and his pulse is 120 beats per minute. What is the most likely diagnosis?
Question 10
A researcher is studying the population dynamics of a species of rabbit. The population growth rate is modeled by the \logistic equation: dP/dt = rP\( 1 - P/K \). If the carrying capacity (K) is 1000 individuals and the initial population (P0) is 100 individuals, what is the population size (P) after 5 years?
Question 11
In a population of 1000 individuals, 70% are heterozygous for the ABO blood group system. If 20% of the population is type A, 40% is type B, and 30% is type AB, what is the frequency of the i allele?
Question 12
A species of bird has a beak shape that is well-suited for cracking open seeds. This is an example of which of the following types of adaptations?
Question 13
In a tropical rainforest e\cosystem, the primary consumers are primarily composed of which of the following groups?
Question 14
The coordination of movement in animals is primarily controlled by which of the following systems?
Question 15
A 40-year-old man is diagnosed with type 2 diabetes. His fasting blood glu\cose level is 250 mg/dL. What is the most likely cause of this condition?
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