Which microorganism has characteristics of both plants and animals?

The correct answer is not B; instead, the microorganism that exhibits characteristics of both plants and animals is fungi. Fungi possess traits such as the ability to photosynthesize like plants due to their cell wall composition, but they also share some similarities with animals, particularly in their mode of obtaining nutrients, as they consume organic matter for energy.

Bacteria are simpler organisms, classified as prokaryotes, which do not have the complex structures or dual characteristics associated with both plants and animals. They can be found in a variety of environments and play various roles in ecology and human health but do not exhibit these plant-animal hybrid traits. Viruses are not classified as living organisms; they require a host cell to replicate and do not possess the cellular structure of plants or animals. Protozoa are single-celled eukaryotes that are more similar to animals than plants, and they do not exhibit the hybrid characteristics found in fungi. Thus, fungi are the correct answer, as they blend aspects of both plant and animal characteristics.