Concept:Overcrowding in a plant population mainly causes competition for resources, not cooperation between different species.
Explanation:When many seeds germinate on a small piece of land, the population density becomes very high.
The plants must share limited water, nutrients, sunlight, and space.
This shared need for limited resources leads to intense competition among the plants.
Because they are crowded, disease can spread easily from one plant to another, causing a rise in disease conditions.
Weak or less competitive plants fail to get enough resources and may eventually die.
Thus, disease, death, and competition are all expected effects of overpopulation.
However, mutualistic relationship requires two different species living together for mutual benefit.
This is not an automatic effect of overcrowding among the same type of crop plants.
Therefore, mutualistic relationship would not be observed among this population.
Answer:C. Mutualistic relationship
