What is the function of frond in brown algae ?

Explanation

**Step-by-Step Solution:**

1. **Identify the Organism**: The question asks about the function of fronds in brown algae. Brown algae belong to the family Pheophyceae, with examples such as Laminaria and Fucus.

2. **Understand the Structure**: In brown algae, the main structures include the holdfast, stipe, and frond. The holdfast anchors the algae to the substrate, while the stipe acts as a stalk.

3. **Define the Frond**: The frond is a leaf-like structure found in brown algae. It is the part of the algae that resembles a leaf.

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