Jamb Biology 2023 Past Questions and Answers

Question 26:

• JAMB 2023

Which of the following is evidence of evolution?

A. All of the above.
B. Similarities in embryonic development
C. Fossils of extinct organisms
D. Homologous structures in different species

Question 27:

• JAMB 2023

Which of the following is an example of an adaptation for survival in social insects?

A. Migration to warmer climates
B. Production of venom for defense
C. Formation of complex caste systems
D. Hibernation during winter months

Question 28:

• JAMB 2023

Which of the following is NOT a part of the alimentary canal?

A. Oesophagus
B. Large intestine
C. Liver
D. Small intestine

Question 29:

• JAMB 2023

Which of the following is an evolutionary trend commonly observed in organisms?

A. Decreased complexity over time
B. Increased dependence on external resources
C. Increased genetic diversity within populations
D. Decreased adaptation to the environment

Question 30:

• JAMB 2023

Which of the following is a characteristic feature of Kingdom Plantae?

A. Presence of chloroplasts
B. Ability to perform photosynthesis
C. Lack of cell walls
D. Heterotrophic mode of nutrition