Jamb Biology 2023 Past Questions and Answers

Question 11:

• JAMB 2023

Which of the following best describes the concept of trophic levels in a functioning ecosystem?

A. The levels of ecological interactions within an ecosystem
B. The levels of energy flow within an ecosystem
C. The levels of nutrient cycling within an ecosystem
D. The levels of biological diversity within an ecosystem

Question 12:

• JAMB 2023

Which of the following statements best describes pollination in plants?

A. Pollination is the process of transferring pollen from the stigma to the anther of a flower
B. Pollination is the process of transferring pollen from the anther to the stigma of a flower
C. Pollination is the process of releasing pollen into the air for dispersal
D. Pollination is the process of seed formation within a flower

Question 13:

• JAMB 2023

Which of the following best describes a natural habitat in ecology?

A. An area where organisms naturally live and interact with their surroundings
B. A human-created environment for wildlife conservation
C. A controlled laboratory setting for ecological experiments
D. A protected area for endangered species

Question 14:

• JAMB 2023

Which of the following statements about viruses is true?

A. Viruses can reproduce outside of a host cell
B. Viruses require a host cell to replicate
C. Viruses possess a cellular structure
D. Viruses are living organisms

Question 15:

• JAMB 2023

Which of the following statements is true regarding cell growth?

A. Cell growth is solely influenced by external factors
B. Cell growth is a continuous process throughout the life of a cell
C. Cell growth involves an increase in the number of organelles within a cell
D. Cell growth occurs by cell division