Which statement is false about photosynthesis?

1. It produces most of the world’s oxygen.

2. It is a process by which plants use solar energy, carbon dioxide and water to produce

sugars.

3. Unlike plants, all fungi are not photosynthetic.

4. Because of their capacity for photosynthesis, plants are called autotrophs.

5. None of the above.

Which of the following topics might a botanist be likely to study?

1. Endangered species.

2. The effects of particular hormones.

3. The development of new varieties of crops.

4. Plant life cycles.

5. All of the above.