Type the correct answer in the box. Spell all words correctly. What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
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symbiosis.

Explanation:

The term that you are referring to is symbiosis. (a symbiotic relationship)

Symbiosis is a proximate and often long-term interaction between two or more different biological species.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;