Question

A clownfish lives among the venomous tentacles of a sea anemone, protected from predators. In return, the clownfish attracts prey for the anemone and cleans its host by eating dead tentacles and food scraps. What type of ecological relationship is this?
Responses
A ParasitismParasitism
B CommensalismCommensalism
C MutualismMutualism
D CompetitionCompetition
Question 2
Certain species of orchids grow on the branches of trees to access better sunlight and air, without extracting nutrients from the tree itself. The tree does not gain any benefit nor suffers any harm from this arrangement. What type of ecological relationship does this describe?
Responses
A ParasitismParasitism
B CommensalismCommensalism
C MutualismMutualism
D PredationPredation

Answer 1

Question 1: C — Mutualism.
- Both clownfish and sea anemone benefit (protection and food/cleaning).

Question 2: B — Commensalism.
- The orchid benefits (better light/air) while the tree is neither helped nor harmed.