While experimentation , why do you think it is difficultto assign any affect seen to any single hormone?

Explanation

### Step-by-Step Solution:

1. **Understanding Phytohormones**:
- Phytohormones, or plant hormones, are chemical substances produced by plants that regulate growth and development. The main types include auxins, gibberellins, abscisic acid, ethylene, and cytokinins.

2. **Synthesis and Function**:
- These hormones are synthesized in different parts of the plant and can have multiple effects on growth and development. For example, auxins are involved in cell elongation, while gibberellins promote seed germination.

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