Organism Relationships Quiz

What is mutualism in ecological relationships?

• A relationship where one organism benefits and the other is harmed

• A relationship where both organisms benefit

• A relationship where one organism benefits and the other is unaffected

• A relationship where both organisms are harmed

Which of the following is an example of a parasitic relationship?

• Bees pollinating flowers

• A tapeworm living in a human's intestine

• Birds eating insects off a buffalo's back

• Fish swimming in a school

Describe how a competitive relationship between two species might affect their populations.

• Both populations will increase due to shared resources.

• One population will decrease while the other increases.

• Both populations may decrease as they compete for limited resources.

• Both populations will remain stable.

Explain why commensalism is considered a symbiotic relationship.

• Because both organisms benefit equally

• Because one organism benefits while the other is unaffected

• Because one organism is harmed while the other benefits

• Because both organisms are harmed

Analyze the impact of removing a predator from an ecosystem on the prey population.

• The prey population will decrease due to lack of predation.

• The prey population will increase due to reduced predation pressure.

• The prey population will remain unchanged.

• The prey population will become extinct.

Predict the outcome of introducing a new species into an ecosystem with existing competitive relationships.

• The new species will always dominate the ecosystem.

• The new species will have no effect on the ecosystem.

• The new species may disrupt existing competitive relationships, leading to changes in population sizes.

• The new species will be immediately eliminated by existing species.

Identify which of the following pairs of organisms are most likely to have a commensal relationship.

• Lion and zebra

• Shark and remora fish

• Cat and mouse

• Wolf and deer

Evaluate the role of mutualistic relationships in maintaining ecosystem stability.

• They have no significant impact on ecosystem stability.

• They can enhance ecosystem stability by promoting biodiversity and resource sharing.

• They decrease ecosystem stability by increasing competition.

• They lead to the extinction of weaker species.