IB Biology SL C4.2.9 Energy Release Topic Practice

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Question 1

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The mass of an individual organism can affect its physiology and feeding ecology. The diagram shows the relative mass of carbon (black) and total wet mass (grey) of a marine crustacean, Calanus hyperboreus and a jellyfish, Bathocyroe fosteri.

Crustacean and jellyfish silhouettes compare wet mass in grey with carbon mass in black. Each organism has a grey wet-mass silhouette and a smaller black carbon-mass silhouette; the jellyfish has a much larger grey silhouette.

State one process that results in the loss of carbon dioxide from a marine organism such as a crustacean or a jellyfish.

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