Biology HL IA (May 2019)

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연세대학교, NYUAD, HKU, HKUST, McGill, UoT, UBC에 모두 합격했습니다. May 2019시험을 친 후 현재 연세대학교 재학중이며…
본 문서는 2019년 Biology HL Internal Assessment 페이퍼이며 저의 Research Question은 Investigating the effect of Calcium Carbonate (CaCO3) provision on the growth of the garden snails Cantareus aspersus 였습니다. 아무래도 살아있는 생명체를 이용하여 한 실험이라 제약도 많았지만, 선생님들이 흥미롭게 본 주제이며 에쎄입니다. IA점수는 7점 나왔습니다.

 

[본문내용]

Investigating the effect of Calcium Carbonate (CaCO3) provision on the growth of the garden snails Cantareus aspersus.

Interest

After a rainy day, I could often see snails on the asphalt road and I still remember that some of their shells were soft while others had hard shells. Ever since, I have been asking myself what made the difference and through this Internal Assessment, I believe that I will be able to explore the effect of Calcium Carbonate in hardening the snail shells in order to ultimately see the growth rates of the snails by measuring their mass.

Research Question

To what extent does the provision of calcium carbonate in the food source affect the growth of snails, measured by their percentage mass change?

Introduction

The binomial nomenclature for the snails used in this experiment were identified to be Cantareus aspersus (C. aspersus). The taxonomy of C. aspersus is domain Eukaryota, kingdom Animalia, phylum Mollusca. Organisms that belong phyla Mollusca have characteristics such as having both mouth and anus, having a hard rasping radula for feeding, having a bilateral symmetry, and most of them having shells made of CaCO3 (Cho et al., 2016).

 

  • 총 페이지수: 13 pages
  • 과목: Biology
  • 주제: Investigating the effect of Calcium Carbonate (CaCO3) provision on the growth of the garden snails Cantareus aspersus
  • The file is in PDF format.
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Biology HL IA (May 2019)

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