Consider the following statements concerning algae's role in contributing to a sustainable marine ecosystem.

I. Algae are a sustainable food source for human nutrition.

II. Algae play an important role in the uptake of dissolved nutrients and in carbon release to the atmosphere.

III. Algae contribute to biodiversity increase given their habitat-structuring role in coastal ecosystems and serving as the basis of the marine and aquatic food-chain as the prime source of omega 3 fatty acids.

IV. Algae do not require arable/fertile land but need fresh water sources.

V. Algae constitute a very rich biomass with a broad range of product opportunities.

Please select the set of numbers that correspond to the true statements: