Answer:
a) autotrophs
Explanation:
Autotrophs: Algae, mosses, and ferns are the example of autotrophs as they prepare their own by the process of photosynthesis.
Heterotrophs: Heterotrophs are organisms that cannot produce their own food and rely on consuming other organisms for energy such as animals.
Decomposers: Decomposers are organisms that break down dead organic matter into simpler substances. Examples are fungu, bacteria.
Parasites: Parasites are organisms that live on or inside another organism (the host) and derive nutrients at the host's expense. For example, protozoa, insects.
