9.  Classify the ecological interactions described: Moss lives on the bark of trees.

Classifying Ecological Interactions

1. Identifying the Interaction:

   • In this scenario, moss grows on the bark of trees. It is essential to determine the type of interaction between the moss and the trees.

2. Type of Interaction:

   • This is an example of commensalism. In commensalism, one organism benefits from the interaction while the other is neither helped nor harmed significantly.

3. Explanation:

   • The moss benefits by obtaining a habitat and possibly access to nutrients and water that might be present on the tree's surface. On the other hand, the tree is generally unaffected by the presence of the moss. The tree does not derive any benefit, nor does it suffer any detriment, from the moss growing on it.

Conclusion

In summary, the interaction where moss lives on the bark of trees can be classified as commensalism, where the moss benefits without significantly impacting the tree.