Biotic and abiotic factors in an ecosystem represent the living and non-living factors that affect this ecosystem, but to be able to answer which are the biotic and abiotic factors we need to know that....
All ecosystems are formed by the relationship between biotic and abiotic factors and concerns the influences that all beings can receive in an ecosystem.
It is related to the living beings of communities such as
Which in turn play different roles in the ecosystem.
These are external factors that are fundamental for the survival of species such as
With this information, we can say that the biotic factor mentioned in the alternatives for this question is Phytoplankton on the surface of the ocean, because they are living beings that live on the surface of the ocean water, and are part of the food chain, representing the trophic level of primary consumer.
Learn more about Ecosystem in https://brainly.com/question/1673533
