4 a Feed conversion ratio FCR is the mass of animal feed in kilograms required for farmed animals to produce one kilogram of

Question

4 a Feed conversion ratio FCR is the mass of animal feed in kilograms required for farmed animals to produce one kilogram of edible mass For example the FCR for salmon is 1 2 and for chicken is 2 2 Deduce the implication of these ratios for sustainability 2 b Models are used as representations of the real world Evaluate the use of food webs to represent ecological communities 2 5 Explain the technique used to estimate the population size of a named species of organism

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