Answer:
Plants, animals.
They both require/need water, therefore, they both compete for water.
The two biotic factors are the plants and animals which compete for the same abiotic factor like water in a forest ecosystem.
An ecosystem comprises two prime constituents, that is, abiotic factors and biotic factors. The living part of the ecosystem like animals and plants are considered as biotic factors. On the other hand, the non-living components of the ecosystem like water, minerals, and light are considered as abiotic factors.
In the case of forest ecosystem, the prime biotic factors like animals and plants are totally dependent upon the abiotic factors like water for their existence. Both plants and animals require water for their growth and development.
Thus, the two biotic factors in a forest ecosystem are plants and animals, and they compete for the same abiotic factor like water.
Find out more information about biotic and abiotic factors here:
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