Post-UTME Biology 2018 Objective — Question 11
Question 11 of 20 from the Post-UTME Screening (Post-UTME) Biology 2018 Objective paper, with the correct answer and a full explanation.
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Use the diagram above (a food web: Green plants -> Grasshopper (G) -> Lizards (H) -> Hawk (I); Snakes (J) -> Owl (K), with lizards also preyed on by snakes) to answer this question. From the diagram, which of the following is most likely to result in an increase in the population of H?
- A. An increase in the population of I
- B. A decrease in the population of K
- C. A decrease in the population of JCorrect
- D. A decrease in the population of G
Explanation
Lizards (H) are preyed upon by snakes (J) as well as hawks; a decrease in the snake population (J) would reduce predation pressure on lizards, allowing H to increase.
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