Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
7th August 2020
- 1DNA, Genetics and Inheritance
State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 2Variation, Evolution and Selection
Give one example of variation that is caused purely by the environment rather than by genes.
- 3Ecology
Define community, in ecological terms.
- 4Ecosystems, Adaptation and Feeding Relationships
A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
- 5Biodiversity, Cycles and Human Impact
A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
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