#4

1. Some abiotic factors that a plant needs to survive are examples like water, sunlight, oxygen, soil, and temperature. Some biotic factors may be examples of predation, disease, competition, parasitism, consumption, and symbiosis.
2. Plants are competing against its own species, and against other types of plants and/ or even animals. 
3. Usually in the "wild" winners are the ones who survive and ready to beat another opponent who stands in their way for survival. The difference between a winner and a loser is life or death. In some situations the 2 opponents may give up at the same time or maybe even call a ''truce". 
4. One other interaction that plants may have what is called, complementary. For example, "if the component species are able to exploit to supply of growth factors in different ways (temporal or spatial) or if one species is able to help the other in supply of factor (like legumes supplying part of N fixed by symbiosis to non-legumes), it is complementary interaction or interference. This also referred to as Annidations."
5. The evidence shows that the plant is more of a primary succesion because its the one who gives food.