a. What is structure a?.... b. Are the contents of structure haploid or diploid? Forming Fungi gus a uc o the (130x). (Auad \'MrMooudl Solution Answer: The above diagram shows that it is fungus, named as a Rhizopus, which belong to class \"Zygomycota\". The mycelium is divided into three parts, 1) Rhizoids (roots like), which help in absorbtion of food materials from substratum.. 2) Sporangiophores 3) Sporangia The thallus of fungus is haploid, it forms zygospore (diploid) during reproduction..