What are fungi primarily formed of?

Fungi are primarily composed of microscopic threads known as hyphae, which are not visible to the naked eye. These hyphae weave together to form a complex structure called mycelium, which is the main body of the fungus. This mycelial network plays a crucial role in nutrient absorption and growth.

While options that mention visible organisms or solid cells imply larger structures, they do not accurately represent the fundamental composition of fungi, which is largely microscopic. The mention of liquid substances does not correlate with the structural composition of fungi, as their main components are solid and filamentous. Understanding this microscopic aspect is essential in mycology and highlights the unique characteristics of fungi as distinct from other organisms.