Which type of microorganism can be found in both humans and animals but thrives in water?

The correct answer is that parasites can indeed thrive in water and be found in both humans and animals. Parasites are organisms that live on or in a host and obtain nutrients at the host's expense. Certain types of parasites, such as protozoa, can exist in aquatic environments, where they reproduce and spread, which can be a significant concern for public health.

The presence of parasites in water can lead to a variety of waterborne diseases, affecting both humans and animals. This connection with water and hosts is particularly important in understanding how these organisms are transmitted and how they can impact food safety.

Bacteria, viruses, and fungi can also be found in water and may affect humans and animals, but their life cycles and survival strategies differ significantly from those of parasites, which often have complex life cycles that involve both an aquatic environment and the ability to infect various hosts. Understanding the properties and behaviors of parasites helps in developing effective prevention strategies in food safety and public health.