Which among the following characters of fungi are shown exclusively by phycomycetes.

i. aquatic habitat

ii. coenocytic, aseptate mycelum.

iii. endogenous formation of aplanospores and zoospores in more numbers in sporangia.

iv. zygospore formation

v. isogamy, anisogamy and oogamy

Phycomycetes have branched, coenocytic and aseptate mycelium, some are aquatic (hyphomycetes), asexual spores are formed endogenously, sexually reproduce by isogamy, anisogamy, oogamy and show zygospore formation. Zygospore or oospore has thick wall around it which can withstand unfavourable conditions.