1. With consideration on the plankton density and other parameters, explain the difference or similarity in the computed Gross Primary Productivity (GPP) of the two microhabitats.   value of GPP in Sandy microhabitat = 425 value of GPP in Rock microhabitat = 375   GPP as Carbon fixed (mg/ m3) per hour

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A: Autotrophs are the primary producers in ecosystem.  They include photosynthetic plants .

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Energy Flow

Energy flow is the continuous and directional flow of energy through living beings within an ecosystem. All living beings can be segregated into producers and consumers. These producers and consumers can be further divided in a food chain. The term ‘trophic level’ is assigned to each level of the food chain.