AS & A Level Marine Science (9693) — October–November 2023, Paper 31
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 shows a generalised animal cell. Complete Table 1.1 to match each organelle to its function. Use only the letters shown in Fig. 1.1.
Answer this question and get it marked →In August 2020, a ship ran aground and spilled approximately 1000 tonnes of oil near the coast of Mauritius in the Indian Ocean. The oil formed a slick on the surface of the sea.…
Answer this question and get it marked →Scientists are concerned about changes to the Arctic Ocean as a result of climate change. Fig. 3.1 shows the extent of sea ice in the Arctic in 1979 and in 2012. Describe the…
Answer this question and get it marked →Antarctic krill (Euphausia superba) is a small crustacean that forms the basis of the food web in the Southern Ocean. Fig. 4.1 shows different life stages of Antarctic krill.…
Answer this question and get it marked →Tuna are osmoconformers that live in the sea. Explain how tuna regulate their internal water and ion concentration.
Answer this question and get it marked →UNESCO (United Nations Educational, Scientific and Cultural Organization) designates biosphere reserves as a method of conservation worldwide. Describe how UNESCO biosphere…
Answer this question and get it marked →Disease management is important in aquaculture. Describe methods that can be used to prevent and control disease in aquaculture.
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