GCSE/ IGCSE Biology Sample Questions II

Describe the main symptoms of sickle cell disease.

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Explain why the dodo was placed in the kingdom Animalia.

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The dodo was classified as a chordate.

 Using the information in the photograph, explain why scientists classified the

dodo into the phylum Chordata.

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The dodo lived on the small island of Mauritius. It became extinct in 1681.

 Using your knowledge of natural selection, suggest why the dodo may have

become extinct.

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Describe the causes of variation in a population.

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Explain why smoking tobacco increases the risk of developing lung cancer.

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A chemical in tobacco acts as a stimulant.

 Explain how stimulants affect neurotransmission.

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Plants cannot use nitrogen directly from the air but need it to make proteins.

 Explain how plants get the nitrogen they need to make protein.

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Explain how an increase in the production of pollutants can be due to an increase

in human population.

 Include both air and water pollution in your answer

BIOLOGY:

- Blankets the investigation of all the living creatures and their collaborations into the biosphere.

Additionally, research the natural elements that encompass the living creatures; and, by method for moderation, it looks for more viable approaches to comprehend the varieties or new states of the environment that can debilitate the presence of living creatures on our planet.
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Source:
http://www.funniestmemes.com/wp-content/uploads/Funniest_Memes_biology-the-only-science-where-multiplication_2116.jpeg

http://pastpapers.edexcel.com/content/dam/pdf/GCSE/Science/2011/Question%20papers%20and%20mark%20schemes/5BI1H_01_que_20130520.pdf