Which organism is more complex and evolved among bacteria, mushroom and mango tree? Give reasons.

Explanation

Mango tree is the most evolved and complex organism. It is an eukaryotic, multicellular, autotrophic terrestrial plant. It is an angiosperm (seeds are covered). Its reproductive organs are aggregated in a flower and therefore it is called a flowering plant.
Bacteria are prokaryotic unicellular organism and fungi are heterotrophic, simple thallophyte with no body differentiation. Therefore, both of these are simple organism.