Question

______ are free spores not enclosed by a spore bearing sac.
○ macroscopic fungi
○ microscopic fungi
○ sporangiospores
○ conidia

Explanation:

To solve this, we analyze each option:

• Macroscopic fungi: Refers to visible fungi (like mushrooms), not a spore type. Eliminate.
• Microscopic fungi: Refers to fungi seen under a microscope (like yeasts), not a spore type. Eliminate.
• Sporangiospores: These spores are enclosed in a sporangium (spore - bearing sac). Eliminate.
• Conidia: Conidia are asexual spores that are free (not enclosed in a spore - bearing sac like a sporangium) and are produced at the tip or side of hyphae. This matches the description.

Answer:

D. conidia