Match the following:
| Relationship | |
| Organisms | |
| 1. Mutualism | a. Mycorrhizae on the surface of plants |
| 2. Commensalism | b. Lianas using trees for vertical support |
| 3. Protocooperation | c. Sea anemone attached to the cells of hermit crab |
| 4. Exploitation | d. Cattle grazing grass |
Reveal answer
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