Final answer:
Krill are typically consumed by predators in a food web, which makes them a part of the diet of carnivores. Decomposers do not directly consume living krill but play a crucial role in breaking down dead organic material and recycling nutrients.
Step-by-step explanation:
Krill is a shrimp-like animal that is considered a type of zooplankton, and within a food web, krill are typically eaten by predators. These predators can include larger aquatic animals such as fish and mammals that are higher up in the trophic levels. Predators are a category of consumers carnivores that eat other animals. In a given food chain, krill would be consumed by secondary consumers or even tertiary consumers depending on the ecosystem.
Decomposers, on the other hand, feed on dead organic material and are not direct consumers of living krill. Herbivores primarily feed on producers like plants or phytoplankton and do not typically consume krill. Producers, such as phytoplankton, photosynthesize to create energy and are the base of the food chain, not consumers like krill.
To add decomposers to the food chain, you would include them as organisms that break down the remains of dead animals and plant material, recycling nutrients back into the ecosystem. They play a crucial role in the food web, although they do not directly consume living krill for energy.