Across
- 2. holes in a leaf that are opened and closed by guard cells.
- 3. breeding. what is called when only plants with certain characteristics are used to breed.
- 5. green disc containing chlorophyll.
- 6. what is the name of the glucose molecules made in photosynthesis can be linked together to from a polymer.
Down
- 1. a good supply of nitrogen from mineral salts.
- 4. green substance found inside chloroplast.