filaments
A freshwater lake.
The Atlantic Ocean separated England and the American Colonies.
Water that travels through soil and rocks is called groundwater. It is an important source of freshwater for drinking and irrigation.
The water that flows in streams and rivers into the ocean and lakes is called runoff or freshwater.
Water effected by tidal flow is often called brackish and has some salt in it.
the fresh water alga, spirogyra, which forms long, thread like colonies called filaments. the cells are stacked end to end.
Spirogyra grows and develops through a process called fragmentation, where a single filament breaks apart to form new filaments. These new filaments then grow through cell division, expanding the colony size. As the filaments continue to grow, they form dense mats or clumps in freshwater environments.
Flagellum.
In the inter-phase nucleus of the cell is located a threadlike genetic material called chromatin.
all fungi is threadlike because all fungi is made of tiny strings called hyphae.
Chromosome
The spore cases on threadlike fungi are called sporangia. These structures are responsible for producing and releasing spores into the environment for reproduction.
Tendrils
Large groups of galaxy clusters that appear in sheetlike and threadlike shapes are called superclusters.
I think the answer could be both spirogyre and euglena move by using flagella
When a haploid spore lands on wet soil or rocks it germinates into a threadlike structure called a hyphae.
A freshwater mussel is also called a unionid mussel or naiad.