Multiple choice

Sporangium develops on slender, erect, thread-like structures called

  1. constrictions

  2. spores

  3. buds

  4. hyphae

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In fungi like Rhizopus, the sporangium (spore case) develops on specialized, thread-like structures called hyphae. These hyphae are erect and support the sporangium above the substrate. Spores are the reproductive cells (not the structures), constrictions are unrelated, and buds are a different reproductive mode.