WAEC Biology 2022 Objective — Question 12
Question 12 of 50 from the West African Examinations Council (WAEC) Biology 2022 Objective paper, with the correct answer and a full explanation.
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Which of the processes is a direct result of contraction of the intercostal muscles?
- A. I. B. II C. IIICorrect
- B. IV
Explanation
The contraction of the intercostal muscles directly causes the ribs to move upward and outward (I), which then leads to the other changes.
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