A marine food web is diagrammed here. Blue whale Killer whale Seagull Leopard seal Fish Penguin Elephant seal Krill Squid Phytoplankton Zooplankton Seaweed Crab 1. What are all of the primary producers in this ecosystem? 2. Name any two secondary consumers. 3. Consider the total biomass of each species in this ecosystem. Which is greater – the biomass of all the blue whales in the ecosystem or the biomass of all the krill in the ecosystem? Explain your reasoning.
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