Answers to common questions to IGCSE/GCSE Biology. Ideal for last minute revision, for mocks and the actual exam! Areas covered are thermoregulation, pupil reflex, accommodation, test for starch and glucose, difference in the thickness of ventricle walls, effect of ADH on a hot day, transmission of a nerve impulse, adaptations of villi, the menstrual cycle, effects of exercise on the breathing rate, effects of smoking, and many more.
Includes model answers which also work as a summary note, in the following topics:
- Thermoregulation
- Effect of ADH on a hot day
- Reflex action nerve impulse
- Inhalation
- Effect of insulin
- Effects of glucagon
- Menstrual cycle
- Xylem and phloem
- Pollination
- Seed formation
- Selective breeding
- Natural selection
- Differences in the thickness of the ventricle walls
- Effect of exercise on the heart rate
- Effect of exercise on the breathing rate
- Effects of smoking on the body
- Breakdown of protein in the stomach
- Adaptations of villi
- Measuring population density in an ecosystem
- A shoots response to light
- The pupil reflex
- Accommodation
- Test for glucose
- Testing a leaf for starch
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