AP BIOLOGY

Detailed explanation-1: -They may be unicellular or filamentous. They reproduce by means of spores. Therefore, the characteristic that is found only in organisms classified in the kingdom fungi is that they have multicellular filaments that absorb nutrients. Thus, the correct option for this question is C.

Detailed explanation-2: -Characteristics of Fungi Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores.

Detailed explanation-3: -Fungi are classified primarily based on structural characteristics, including coloration, sporangial form, septa existence or disappearance, and spores.

Detailed explanation-4: -Most multicellular fungal bodies are made up of filaments called hyphae. Hyphae can form a network called a mycelium, which is the thallus (body) of the fungus (Figure 4.2. 1). Fungi are heterotrophs that excrete enzymes to digest food externally, then absorb the digested food.

Detailed explanation-5: -Most fungi are multicellular organisms. They display two distinct morphological stages: the vegetative and reproductive. The vegetative stage consists of a tangle of slender thread-like structures called hyphae (singular, hypha), whereas the reproductive stage can be more conspicuous.