The Sun (an abiotic factor) provides energy for producers ( a biotic factor) which use light energy to undergo the process of photosynthesis. When other consumers eat the producers they are receiving energy as well.
Slightly greater, but not too much, or the cell will rupture (cytolysis).
This demonstrates a competitive relationship, as they are competing for food.
All would be affected because decomposers like to break down dead things meaning dead plants AND animals
