Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
5th December 2019
- 1DNA, Genetics and Inheritance
State one ethical concern raised by embryo screening.
- 2Variation, Evolution and Selection
State one advantage and one disadvantage of selective breeding in farm animals.
- 3Ecology
Name the equipment used to measure the abundance of a small plant species within a sample area.
- 4Ecosystems, 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.
- 5Biodiversity, Cycles and Human Impact
Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
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