Question

1. which fungi help sustain plant life?

epiphytic fungi
parasitic fungi
symbiotic fungi
autotropic fungi

Explanation:

Symbiotic fungi form mutualistic relationships with plants. For example, mycorrhizal fungi (a type of symbiotic fungi) attach to plant roots. The fungi help plants absorb water and minerals (like phosphorus) from the soil more efficiently. In return, the plants provide the fungi with carbohydrates (products of photosynthesis). Epiphytic fungi grow on plants but don't have a beneficial - sustenance relationship in the sense of helping with core life - sustaining processes like nutrient uptake. Parasitic fungi harm plants by taking nutrients from them (e.g., causing diseases). Autotropic fungi is not a correct term as fungi are heterotrophic (they cannot produce their own food like autotrophs).

Answer:

symbiotic fungi