A fungus is built from threads — hyphae — that branch into a network, the mycelium. In bread mould (Rhizopus) upright hyphae end in a round sporangium packed with spores; rhizoids anchor it and absorb food. ▶ Play to tour the parts.
A fungus can't swallow. Its hyphae secrete enzymes onto the food, breaking it down where it lies, and then absorb the small soluble products — extracellular digestion. ▶ Play to watch it.