Daily Practice

GCSE Science

29th March 1987

5 questions · GCSE · 584 questions in this band

1
Variation, Evolution and Selection
State one advantage and one disadvantage of selective breeding in farm animals.
2
Ecology
Name the equipment used to measure the abundance of a small plant species within a sample area.
3
Ecosystems, Adaptation and Feeding Relationships
In a grassland food chain, the biomass of grass available is 8400 kg and the biomass transferred to the rabbits that eat it is 940 kg. Calculate the percentage efficiency of biomass transfer from grass to rabbits, to 3 significant figures.
4
Biodiversity, Cycles and Human Impact
Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
5
Chemistry Required Practicals and Data Analysis
In the rate experiment where a cross disappears, why is the result subjective?

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