Nestled across from Rockefeller Center lies Manhattanâs premier department store, Saks Fifth Avenue. Spanning an entire city block, the shopping center is as glamourous at it was when it opened, nearly 100 years ago.
Rotifers are small, mostly freshwater animals, and are amongst the smallest members of the Metazoa -- that group of multicellular animals which includes humans, and whose bodies are organized into systems of organs.delloid rotifers are the commonest variety found in fresh water. The term describes their habit of moving about by extending the body and attatching the head, then catching up with the foot and again extending the body -- bdelloid, like a leech.
This rotifer builds an elegant tube of what looks like tiny beads which are, in reality, fecal pellets formed by a concavity on the head in which a gland produces a gelatinous secretion which is mixed with its waste material by ciliary action to form pellets which are then added to the tube as the rotifer grows.