AS & A Level Marine Science (9693) — October–November 2023, Paper 12

Fig. 1.1 shows a boxer crab, Lybia tessellata, and two anemones. Complete Table 1.1 to show the hierarchy of classification of the boxer crab.

Fig. 2.1 shows the height of the tide at one location over two weeks. Use Fig. 2.1 to state the day number on which a neap tide occurs.

Fig. 3.1 is a diagram of a kelp. Kelp is a macroalga. On Fig. 3.1 identify the parts labelled J, K, L and M.

Fig. 4.1 shows the temperature variation in deep water along a line from south to north in the southern hemisphere in the ocean. Location A is in the deepest zone of the ocean.…

Describe the effects of El Niño on human communities along the Eastern Pacific coastline of South America.

Kinetic particle theory can be used to explain how water changes state. Fig. 6.1 shows a particle model of water in three different states (A = solid, B = liquid, C = gas).…