Which of the following describes a characteristic of pathogens?

Pathogens are microorganisms such as bacteria, fungi, and viruses that can cause disease in a host. In the context of plants, pathogens can lead to a variety of diseases, affecting their growth, yield, and overall health. Various types of pathogens can infect different parts of a plant, leading to symptoms such as wilting, discoloration, or decay. This characteristic is crucial for understanding plant health and managing agricultural practices, as recognizing pathogens can help in developing effective strategies for disease prevention and control.

Other choices do not accurately reflect the broader nature of pathogens. While some may be beneficial, not all pathogens contribute positively to plant growth. Additionally, pathogens can infect not only plants but also animals and humans, making the assertion that they cause disease only in humans inaccurate. Finally, pathogens are not exclusively found in water; they can be found in various environments including soil, air, and on plant surfaces.