What is the organism that is harmed in parasitism called

In parasitism,  while that which is harmed is called the HOST.

-Hops

the use of electrical signals that transit messages is know as

chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.