What method do fungi use to obtain nutrients?

Fungi uniquely acquire nutrients through the process of breaking down complex organic substances in their environment and then absorbing the resulting simple molecules. This process is facilitated by enzymes produced by fungi, which decompose organic material into smaller compounds that can be readily taken up by their cells. Fungi are heterotrophic organisms, meaning they cannot perform photosynthesis and thus rely on external sources for their nutritional needs. They play a crucial role in ecosystems as decomposers, helping to recycle nutrients back into the soil.

The other options do not correctly depict the nutrient acquisition method used by fungi. Unlike animals, fungi do not ingest food; they release enzymes to externally digest their food before absorption. While some organisms can synthesize organic compounds, fungi do not do this; they rely on external organic material. Additionally, while diffusion can occur in various contexts, the specific active absorption process employed by fungi is more accurate and essential for their growth and metabolism.