Analyze the symbiotic relationships mentioned in the chapter.
a. Lichens are a symbiotic association between an alga and a fungus.
b. In lichens, the alga is the phycobiont and the fungus is the mycobiont.
c. The fungus provides shelter and absorbs nutrients, while the alga provides food through photosynthesis.
d. Mycorrhiza is a symbiotic association between fungi and the roots of higher plants.
e. Some bacteria live as parasites in or on other organisms.
f. Methanogens live in the gut of ruminant animals, which is a symbiotic relationship.
g. Viruses can be considered symbionts as they live inside host cells.
