AS & A Level Marine Science (9693) — October–November 2024, 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 cell from a mangrove leaf, as seen under a microscope. A scale bar of 4 μm is shown. Circle the correct magnification used to draw this cell. ×500 ×2000 ×5000 ×10…
Answer this question and get it marked →Fish farms use feed pellets containing fishmeal to supply protein to farmed fish. State why a high protein content is required in the fish feed.
Answer this question and get it marked →Hydrothermal vents are found in the deep ocean where tectonic plates separate. Organisms at hydrothermal vents form communities that depend on chemosynthesis. Name the producers…
Answer this question and get it marked →All living organisms carry out gaseous exchange. State the importance of gaseous exchange in living organisms.
Answer this question and get it marked →Illegal fishing involves fishing without a licence, fishing in restricted areas or fishing beyond the allowed quota. Satellite technology is used to monitor the movements of…
Answer this question and get it marked →Microscopic algae are found in many marine environments. Discuss the importance of microscopic algae in marine environments.
Answer this question and get it marked →The amount of microplastic in the marine environment has increased significantly in recent decades. Explain why microplastics have increased in the marine environment.
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