The symbols +, -, and 0 are used to show the results of interactions between individuals and groups of individuals. The symbol + denotes a positive interaction, - denotes a negative interaction, and 0 denotes interactions in which individuals are not affected. The first symbol refers to the first organism mentioned. Which fact is correct when describing species interactions?
A) +/0 will always remain such.
B) A +/- interaction could shift to +/0 or +/+ over time, depending on other factors such as competition, population density, or environmental changes.
C) Species interactions occur in isolation and cannot affect the structure of ecological communities.
D) A -/- interaction benefits both of the species in the relationship.

Question

Quizplus · Accepted Answer

Species interactions can be dynamic and change over time based on various factors such as competition, population density, or environmental changes. An initial negative interaction (-) could shift to a neutral (0) or even a positive interaction (+) depending on these factors. It is important to note that species interactions do not occur in isolation and can have a significant impact on the structure of ecological communities. Option A is incorrect because interactions can change over time. Option C is incorrect because species interactions do not occur in isolation. Option D is incorrect because a negative interaction (-) implies one or both of the species in the relationship are harmed, so it cannot be beneficial for both species.

The Symbols +, -, and 0 Are Used to Show