Daily Practice · GCSE Science

Daily Practice - GCSE Science

10th January 1997

5 questions · GCSE · 584 questions in this band

1
DNA, Genetics and Inheritance
A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.
2
Variation, Evolution and Selection
Name the scientist who proposed the three-domain system of classification, and name the three domains.
3
Ecology
State one structural adaptation of a polar bear that helps it survive in a cold environment.
4
Ecosystems, 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.
5
Biodiversity, 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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