| A | B |
|---|
| chitin | tubes that have thin transparent walls reinforced |
| parasitic | some fungal species such as late blight are |
| rhyzoid | the vegetive body of most true fungi |
| rhyzoid | a mesh of branched tubular filaments called hypha |
| saprophytes | for 425 million years their motabolic activities enable them to act as |
| fungi secrete enzymes into their surroundings | where large organic molecules are broken down into smaller components that the fungal cells then absorb |
| most fungi are decomposers | obtain their nutrients from nonliving organic matter |
| some are parasites | get their nutrients from their living host tissues |
| stolans | a common form of asexual reproduction is the growth of a new fungal body |
| gametes | sexual reproduction usually involves the cytoplasmic fusion of two |
| after gametes fuse | nuclear fusion to form the zygote occurs |
| dikaryotic stage | cells of the fungal body contain two distinct haploid nuclei |
| dikaryotic stage | may persist for years before the two nuclei in each cell fuse and form a zygote |
| dikaryotic stage | part of the fungal life cycle in which each cell has two haploid nuclei |
| fungal spore | part of the life cycle that is a walled resistant cell or multicelled structure |
| hypha | a single fungal filament |
| mycelium | a mass of filaments that compose a fungal body |
| saprobe | an organism that obtains its nutrients from dead organic material |
