Daily Practice

GCSE Science

26th July 1989

5 questions · GCSE · 584 questions in this band

1
The Digestive System and Enzymes
Where is bile made and where is it stored?
2
The Circulatory System and Heart
Why is the wall of the left ventricle thicker than that of the right ventricle?
3
Plant Tissues, Transport and Transpiration
Why are xylem cells strengthened with lignin?
4
Infection and Response
Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
5
Communicable Diseases and Pathogens
How do bacteria make a person feel ill?

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