Daily Practice · GCSE Science

Daily Practice - GCSE Science

2nd June 1998

5 questions · GCSE · 584 questions in this band

1
Hormonal Coordination and Homeostasis
A person's blood glucose concentration is 4.8 mmol/dm^3 before breakfast and 7.2 mmol/dm^3 after breakfast. Calculate the increase in blood glucose concentration.
2
Inheritance, Variation and Evolution
Name the three-domain system of classification, and name the scientist most associated with proposing it.
3
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.
4
Variation, Evolution and Selection
State what is meant by a selection pressure.
5
Ecology
Give one example of a biotic factor that could affect a population of rabbits.

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