No, an elephant is not a unicellular organism.
Based on the provided reference, elephants belong to the Domain Eukaryota and the Kingdom Animalia. They are further classified as:
- Phylum: Chordata (possessing a backbone and nerve cord)
- Class: Mammalia (having hair, giving live birth, and nursing their young).
The reference explicitly states that elephants are multicellular animals. This means they are composed of many cells working together, which is the opposite of being unicellular (consisting of only one cell).
