If Haustoria from the Fungal Partner Were to Appear Within

Multiple Choice

If haustoria from the fungal partner were to appear within the photosynthetic partner of a lichen, and if the growth rate of the photosynthetic partner consequently slowed substantially, then this would support the claim that ________.

A) algae and cyanobacteria are autotrophic
B) lichens are not purely mutualistic relationships
C) algae require maximal contact with the fungal partner in order to grow at optimal rates
D) soredia are asexual reproductive structures combining both the fungal and photosynthetic partners