Worksheet on food chains and food webs in an aquatic ecosystem, showing a diagram with various marine organisms and handwritten answers identifying food chains.

A skills worksheet titled "Food Chains and Food Webs" featuring a food web diagram of an aquatic ecosystem with organisms like krill, algae, penguins, seals, and whales. The worksheet includes a section for interpreting the food web and identifying food chains, with handwritten answers for four chains involving krill.