Solved

Lichens Are Common on Tree Trunks and Rocks Throughout Canada

Question 2

Multiple Choice

Lichens are common on tree trunks and rocks throughout Canada. These composite organisms involve the symbiosis of a fungus and either a green alga or a cyanobacterium. In this symbiosis, each species is dependent upon the other. The term used to describe this type of relationship is


A) obligate symbiosis.
B) facultative symbiosis.
C) endoparasitism.
D) ectoparasitism.

Correct Answer:

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