Identify the incorrect statement regarding population interactions:
| 1. | An orchid growing as an epiphyte on a mango branch is an example of commensalism. |
| 2. | A given fig species can only be pollinated by its partner wasp. |
| 3. | Biological pest control methods are largely based on predation. |
| 4. | Most parasites do not harm or reduce the fitness of their hosts. |
Which one of the following organisms reproduces sexually only once in its lifetime?
| 1. | Banana | 2. | Mango |
| 3. | Tomato | 4. | Eucalyptus |