Question 27
Question 27 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
14. Coordination and resp...
14.3. Hormones

Describe adrenaline as the hormone secreted in ‘fight or flight’ situations and its effects, limited to: (a) increased breathing rate (b) increased heart rate (c) increased pupil diameter

9. Transport in animals
9.2. Heart

Investigate and describe the effect of physical activity on the heart rate

14. Coordination and resp...
14.2. Sense organs

Explain the pupil reflex, limited to changes in light intensity and pupil diameter