POST UTME UNILAG 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The human body is composed of
A. 5 main organs
B. 11 main systems
C. 4 main tissues
D. all of the above
Question 2
In a tropical rainforest, the primary consumers are primarily herbivores. Which of the following is a characteristic of the primary consumers in this e\cosystem?
A. They have a high metabolic rate
B. They are primarily carnivores
C. They have a low reproductive rate
D. They are primarily detritivores
Question 3
A plant with a xylem system that is composed of tracheids and vessels is likely to be found in a region with a high level of
A. high humidity
B. high temperature
C. high salinity
D. high wind speed
Question 4
In the context of eco\logy, what is the primary difference between a biome and a habitat?
A. A biome is a larger geographic area that encompasses multiple habitats.
B. A habitat is a smaller geographic area that is home to a specific species or community.
C. A biome is a specific type of e\cosystem, while a habitat is a general term for any environment.
D. A biome is a type of vegetation, while a habitat is a type of animal community.
Question 5
A diagram of a titration setup is shown below. What is the purpose of the burette?
A. To measure the volume of the titrant
B. To measure the volume of the analyte
C. To mix the titrant and analyte
D. To measure the pH of the solution
Question 6
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 7
A diagram of a human kidney is shown. Identify the part responsible for filtering waste from the blood.
A. Liver
B. Kidney
C. Pancreas
D. Spleen
Question 8
A population of bacteria has a growth rate of 0.05 and a carrying capacity of 1000. What is the population size at equilibrium?
A. 500
B. 750
C. 1000
D. 1250
Question 9
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
A. To focus light on the retina
B. To detect movement
C. To regulate pupil size
D. To produce tears
Question 10
What is the term for the process by which cells divide and grow, resulting in an increase in the number of cells?
A. Mitosis
B. Meiosis
C. Cell division
D. Cell growth
Question 11
A population of rabbits has a birth rate of 0.05 and a death rate of 0.01. What is the net reproductive rate (R0) of the population?
A. 0.04
B. 0.06
C. 0.08
D. 0.1
Question 12
In the context of evolutionary theory, what is the primary mechanism by which genetic drift can lead to the fixation of a deleterious mutation?
A. Genetic hitchhiking
B. Bottleneck effect
C. Founder effect
D. Genetic drift
Question 13
In a population of 1000 individuals, the frequency of the dominant allele (A) is 0.6, and the frequency of the recessive allele (a) is 0.4. What is the expected frequency of the genotype AA?
A. 0.36
B. 0.24
C. 0.16
D. 0.04
Question 14
A species of bird has a unique mating ritual where the male performs a complex dance to attract a female. Which of the following reproductive strategies is most likely being employed by this species?
A. Asexual reproduction
B. Sexual reproduction
C. Parthenogenesis
D. Apomixis
Question 15
In the context of blood transport systems, what is the primary function of the erythrocytes?
A. To regulate blood pH
B. To transport oxygen and carbon dioxide
C. To maintain blood pressure
D. To filter waste products

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