Answer:
plants
animals
Step-by-step explanation:
From the given choices only plants and animals are biotic in nature. Biotic factors are factors that can be attributed to living organisms.
The other choices such as water, light and minerals are abiotic. They are do not originate from living organisms.
Both biotic and abiotic factors are present within the ecosystem. In fact, they influence the ecosystem to a very large extent.
Together, these factors shapes the ecosystem.