Daily Practice · GCSE Science

Daily Practice - GCSE Science

20th June 1994

5 questions · GCSE · 584 questions in this band

1
Inheritance, Variation and Evolution
Name the three-domain system of classification, and name the scientist most associated with proposing it.
2
DNA, Genetics and Inheritance
A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
3
Variation, Evolution and Selection
State what is meant by a selection pressure.
4
Ecology
Give one example of a biotic factor that could affect a population of rabbits.
5
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.

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