The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. The symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned.
-The feeding relationships among the species in a community determine the community's
A) secondary succession.
B) ecological niche.
C) species richness.
D) species-area curve.
E) trophic structure.

Question

Quizplus · Accepted Answer

The trophic structure of a community refers to the feeding relationships among species. The +, -, and o symbols can be used to show the positive, negative, or neutral interactions between species, respectively. Therefore, the best choice is E, trophic structure. The other answer choices are not directly related to feeding relationships among species.

The Symbols +, -, and O Are to Be Used