Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 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
Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
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