Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
31st December 2024
- 1Inheritance, Variation and Evolution
Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 2DNA, Genetics and Inheritance
A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
- 3Variation, Evolution and Selection
State what is meant by a selection pressure.
- 4Ecology
Give one example of a biotic factor that could affect a population of rabbits.
- 5Ecosystems, 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.
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