AS & A Level Marine Science (9693) — May–June 2024, Paper 42
5 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The gills of most fish have cells on their surfaces that secrete a thick, slippery fluid called mucus. The cells that secrete mucus are known as goblet cells. Fig. 1.1 is a…
Answer this question and get it marked →Killifish are euryhaline fish that are able to osmoregulate. State what is meant by the term euryhaline.
Answer this question and get it marked →Dublin Bay prawns, Nephrops sp., are crustaceans often caught by using bottom trawling. Haddock is a fish that is an important species for fisheries in the north Atlantic Ocean.…
Answer this question and get it marked →The effect of a no-take zone on the sustainability of fish populations and the income of fishers was investigated in an Indian Ocean fishery near Kenya. The sustainability of fish…
Answer this question and get it marked →In 2010, the total global output of carbon dioxide from the combustion of fossil fuels was estimated to be 33 000 000 000 kg. Some scientists have suggested that by 2030 the…
Answer this question and get it marked →