Question

is leechens parasitic or saprophytic??
plz answer

Answer 1

Saprophytic = feeds on dead host  

Parasitic = feeds on living host  

Lichen feeds on live trees therefore they are parasitic.

Answer 2

leechens are saprophtic because Lichens are made up of two or more closely interacting organisms, a fungus, and one or more partners, called photobionts. The photobiont may be an alga and/or cyanobacteria, both of which can produce simple sugars by photosynthesis. In contrast, fungi are 'heterotrophic' and require an external source of food.