Daily Practice
GCSE Science
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27th October 1991
- 1Ecology
A student counts 3, 5, 4 and 8 dandelion plants in four separate 1 m^2 quadrats. Calculate the mean number of dandelions per quadrat.
- 2Ecosystems, Adaptation and Feeding Relationships
State what is meant by the term ecosystem.
- 3Biodiversity, Cycles and Human Impact
State one human activity that reduces the amount of land available for other organisms.
- 4Chemistry Required Practicals and Data Analysis
Why is a polystyrene cup with a lid used in energy-change experiments?
- 5Atomic Structure and the Periodic Table
State the relative charge of a neutron.
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