1. Ecosystems and Ecology

Community Interactions — Quiz

Test your understanding of community interactions with 5 practice questions.

Practice Questions

Question 1

Which community interaction is best represented by the mathematical notation $(+, -)$ where one species benefits and the other is harmed, but the interaction is typically long-term and does not immediately result in the death of the harmed organism?

Question 2

In a competitive interaction between two species for a limited resource, if one species is a superior competitor, what is the most likely long-term ecological outcome for the less competitive species?

Question 3

Consider a scenario where a specific type of orchid grows on the branches of a large tree in a rainforest. The orchid benefits by gaining access to sunlight and a stable perch, while the tree is neither helped nor harmed by the orchid's presence. What type of community interaction does this represent?

Question 4

Which of the following mathematical representations accurately describes a mutualistic relationship between two species, where both species benefit?

Question 5

A population of rabbits is the primary food source for a population of foxes. If the rabbit population suddenly decreases due to a disease, what is the most probable short-term effect on the fox population?