Across
- 4. Wild orchids on tree branches.
- 5. A process when a plant make their own food.
Down
- 1. A type of symbiosis among plants.
- 2. The interaction among plants consists of two types which are competition and _____ .
- 3. The balance of the ecosystem is highly dependent on the interaction between animals, plants and human.
- 6. Plants compete to obtain water, ___, nutrients and space to grow healthily.