Single-celled animals are classified as

A. arthropods

B. mammals

C. protozoans

D. molluscs

Correct Answer is :

C. protozoans

Explanation

Single-celled animals are classified as protozoans. A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell. The main groups of unicellular organisms are bacteria, archaea, protozoa, unicellular algae and unicellular fungi. Unicellular organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms.