When all the five stages are present in the life cycle of rust, it is known as

Solution (By Examveda Team)

When all five stages are present in the life cycle of rust, it is known as Macrocyclic.
All rusts are obligate parasites, meaning that they require a living host to complete their life cycle. All 5 stages of their life cycle are Pycniospores, Aeciospores, Urediniospores, Teliospores and Basidiospores.
The one where all these five stages are present is termed Macrocyclic.