Mildew is best described as which type of organism?

• A. Bacteria
• B. Fungus
• C. Virus
• D. Parasite

Answer: (B)

Mildew is a fungus. Mildew is a mold-like organism that grows best in moist environments and feeds by absorbing nutrients from its surroundings. Fungi form networks of thread-like filaments called hyphae and reproduce through spores, which explains mildew’s typically fluffy, powdery appearance and its ability to spread. This distinguishes mildew from bacteria, which are single-celled organisms without hyphae or spores; from viruses, which are not independent life forms and need a host to replicate; and from parasites, which live on or in other organisms and rely on them for nourishment. Because mildew fits the growth and reproductive patterns of fungi, describing it as a fungus is the best choice.