Question

1. why might scientists sometimes disagree on whether a relationship is commensalism or mutualism? give an example

Explanation:

In commensalism, one organism benefits and the other is neither helped nor harmed. In mutualism, both organisms benefit. However, it can be difficult to determine if a relationship is commensalism or mutualism because it may be hard to observe if one organism is truly not affected or if there are subtle benefits. For example, some birds that follow large mammals to eat insects disturbed by the mammals. It was thought to be commensalism, but further study might show that the mammals get some benefit (e.g., the birds alert them to predators), making it mutualism.

Answer:

Scientists might disagree because it can be hard to tell if one organism is truly unaffected (commensalism) or if there are subtle benefits (mutualism). An example is birds following large mammals; initially thought commensal, but could be mutual if mammals get benefits like predator alerts.