Define(i)saprophyte, and (ii) parasite. Name two saprophytes and two parasites.

i) Saprophyte – The organisms which obtain their food from dead plants (like rotten leaves), dead and decaying animal bodies, and other decaying organic matters (like rotten bread) are known as saprophytes. 

Example: Fungi and some bacteria.

ii) Parasite: The organisms which feed on another living organism called its host are known as parasites.

Example: Plasmodium and roundworm.