I believe that would be a decomposer
The grey liquid is related to the white liquids because the change in colour is the result of a chemical change/reaction between the two white liquids.
Among the choices, the only one that can be considered a carnivore is C. Adelie penguin. Adelie penguins are found in the Arctic, and feed on aquatic creatures such as krill, fish, and squid. Krill is a type of crustacean that feeds on phytoplankton, which is at the bottom of the food chain.
