Portuguese man-of-war is scientifically known as ………

Explanation

**Step-by-Step Solution:**

1. **Identify the Organism**: The question asks for the scientific name of the Portuguese man-of-war, which is a marine organism.

2. **Understand Binomial Nomenclature**: The scientific name of an organism is given in a two-part format known as binomial nomenclature. This format includes the genus name followed by the species name.

3. **Recall the Scientific Name**: The scientific name for the Portuguese man-of-war is "Physalia physalis". Here, "Physalia" is the genus and "physalis" is the species.

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