A(n) ________ is an organism that lives in an intimate association with a second organism.
A) commensal
B) parasite
C) heterocyst
D) endospore
E) symbiont

Question

Quizplus · Accepted Answer

The term "symbiont" refers specifically to an organism that lives in an intimate association with a second organism, which is the definition given in the question. Commensals are organisms that live in close association with another organism, but only one of the organisms benefits. Parasites harm the host organism, and heterocysts are specialized cells found in certain bacteria that are involved in nitrogen fixation. Endospores are a type of structure formed by some bacteria to aid in survival under adverse conditions.

A(n) ________ Is an Organism That Lives in an Intimate