Determine what organism fits the following niche: Heterotroph, non-motile, spores. A. Ferns
B. E. coli bacteria
C. Fly Cap mushroom
D. Arctic Hare

C. Fly Cap mushroom

Explanation:

All fungi are heterotrophic organisms because they obtain food and energy from external sources. Moreover, fungi are non-motile since they don't move. Finally, these organisms produce both sexual and asexual spores which are dispersed by wind and water.  

On the other hand, the mushroom is the body of a fungus that grows on the soil, generally in humid and shady areas. The fly agaric mushroom is one of the most recognizable species of fungus.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!